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05.01.1915 Fred F. Main Burroughs (P) Adding Machine Corp. : Adding and listing machine
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05.01.1915 Frank Charles Farmar : Slide Rule
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05.01.1915 Gatewood, William F Simplex Adding Machine Company : Adding Machine
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05.01.1915 E. H. Hebern & F. Hoffman : Cryptographic Attachement for Type Writing Machines
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05.01.1915 David Smith Kerr : Date calculating device
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02.02.1915 James F. Mays Mays Accounting Machine Comp. : Calculating machine
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02.02.1915 Wermore, Charles (P) & Niemann, Frederick (P) Comptograph (P) Comp. : Selective cipher cut-out for adding machines
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09.02.1915 Clyde Musgrove : Calculator
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09.02.1915 Rauchwetter, Franz (P) : Calculating Machine
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09.02.1915 Barrett, Glenn (P) J. : Punctuating Device for Adding Machines
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16.02.1915 G. B. Cirigliano : Compasses for Describing Ellipses
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16.02.1915 Cleal, Joseph P. (P) NCR (P) : Cash register
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16.02.1915 Sweet, Welcome F; Tideman, Sven Simplex Adding Machine Company : Adding Machine
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16.02.1915 C. W. Gooch : Calculating Machine
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16.02.1915 P. E. Parsons : Miter Box and Calculator
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16.02.1915 Greve, John E. (P) Wanderer (P) Werke vorm. Winklhofer & Jaenicke AG : Counting device for computing-machines
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16.02.1915 E. Rooney : Educational Appliance
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16.02.1915 Baur, Frederick (P) : Rate Finder
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02.03.1915 K. Keeler : Planimeter
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02.03.1915 Thieme, Otto (P) Moon-Hopkins (P) Billing Machine Co. : Tabulating mechanism for calculating-machines
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02.03.1915 Barrett, Glenn (P) Barrett (P) Adding Machine Co. : Operating-handle for adding-machines
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09.03.1915 Swalm, William E. (P) Burroughs (P) Adding Machine Comp. : Adding machine
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16.03.1915 von Pein, Edward (P) NCR (P) : Cahs register
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16.03.1915 Magnus, John (P) Dalton (P) Adding Machine Comp. : Adding and recording machine
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23.03.1915 Francis K. Fassett NCR (P) : Registering mechanism
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23.03.1915 Hopkins, William (P) Wallace : Computing and writing machine
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30.03.1915 Wilgus, Charles V. (P) Adder Machine Comp. : Calculating-machine
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06.04.1915 John A. Werner NCR (P) : Cash-register
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06.04.1915 Trinks, Franz (P) : Carrying mechanism for calculating machines
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13.04.1915 John J. Chapin Burroughs (P) Adding Machine Comp. : Tabulating mechanism for adding machines
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13.04.1915 Charles Sulfer Dial Cash Register (P) Comp. : Total-adding cash-register
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13.04.1915 Charles Sulfer Dial Cash Register (P) Comp. : Registering mechanism
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20.04.1915 Church, Edmund (P) NCR (P) : Cash and credit register
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20.04.1915 Nathan W. Perkins, Jr. : Electric drive for calculating machines
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20.04.1915 Ellis, Halcolm (P) : Machine for calcglation and printing the results of said calculations
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20.04.1915 Sydney B. Austin Frederic L. Huidekoper : Calculating machine
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20.04.1915 Heinrich Rauscher : Calculating machine
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20.04.1915 D. W. Shiek : Computing Machine or the like
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20.04.1915 A. D. Harmon : Calculating Machine
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27.04.1915 Kettering, Charles (P) Chryst, William (P) NCR (P) : Cash-register
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27.04.1915 C. M. Myers & J. A. Terhorst : Pencil Calendar
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04.05.1915 Francesco Skerl NCR (P) : Multiple counter cash register
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04.05.1915 W. J. Crumpton : Method and Means for Statistical Accounting
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11.05.1915 Rinsche, Frank Charles (P) : Adding Machine
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11.05.1915 S. J. Spitler : Educational Appliance
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18.05.1915 Daniel W. Shiek Walter L. Milliken : Adding machine or the like
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25.05.1915 H. W. Jones : Computing Machine
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25.05.1915 Meilicke, Carl Arno (P) : Calculator
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01.06.1915 Landsiedel, Harry (P) Dalton (P) Adding Machine Comp. : Adding-machine
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01.06.1915 Faithfull, Clarence (P) : INterest Bearing Instrument of Obligation
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01.06.1915 Charles W. Schubert : Designing or calculating chart
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08.06.1915 Cleal, Joseph P. (P) NCR (P) : Cash register
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08.06.1915 P. F. W. C. Krippendorf : Computing Device
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08.06.1915 T. Winiecki : Educational Appliance
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15.06.1915 Thieme, Otto (P) Moon-Hopkins (P) Billing Machine Co. : Multiple zero escapement mechanism
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15.06.1915 Thieme, Otto (P) Moon-Hopkins (P) Billing Machine Co. : Calculating machine
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15.06.1915 D. W. Shiek : Computing Machine
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15.06.1915 D. W. Shiek : Calculating and Listing Machine
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29.06.1915 Kettering, Charles (P) Chryst, William (P) NCR (P) : Cash-register
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29.06.1915 E. G. McGinley : Counting Device
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06.07.1915 Ebenezer Hill : Calculating- instrument
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06.07.1915 J. M. Spitzglass : Calculating Device
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06.07.1915 Landsiedel, Harry (P) Dalton (P) Adding machine Co. : Adding and recording machine
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06.07.1915 Bernard Morgan : Parcel-post calculating device
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06.07.1915 Edward D.N. Schulte W. und L.E. Gurley : Computing rule
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13.07.1915 John N. Thornton John T. Underwood (P) : Computing-machine
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20.07.1915 William C. Michael : Calculating machine
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27.07.1915 Alfred S. McCaskey McCaskey (P) Electric Calculator Comp. : Calculating machine
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27.07.1915 W. D. Rees : Drawing Instrument
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03.08.1915 Matthew Irion Eduard Muller : Registering mechanism
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03.08.1915 Wahl, John C. (P) Wahl (P) Comp. : Calculating-machine
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03.08.1915 Wahl, John C. (P) Wahl (P) Adding Machine Co. : Calculating machine
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10.08.1915 Carrol, Thomas (P) NCR (P) : Cash register
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10.08.1915 Meilicke, Carl Arno (P) Meilicke Systems (P) Inc. : Card Index
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10.08.1915 Herbert S. Hirshberg : Library fine computer
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10.08.1915 Trinks, Franz (P) : Calculating-machine
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17.08.1915 A. C. Sargent : Computing Device
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17.08.1915 Keuffel, William (P) Keuffel und Esser (P) Comp. : Slide rule runner
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24.08.1915 Wilgus, Charles V. (P) Adder Machine Comp. : Calculating machine
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24.08.1915 Gooch, Claiborne (P) Burroughs (P) Adding Machine Comp. : Controlling device for adding-machines and the like
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24.08.1915 Carrol, Thomas (P) NCR (P) : Multiple cash register
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24.08.1915 Daniel W. Shiek Walter L. Milliken : Computing-machine
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24.08.1915 F. I. Peterson : Adding Attachement for Credit Registers
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31.08.1915 Byron Bliss Wells American Cash Register Comp. : Check printer attachment for cash registers
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31.08.1915 J. E. Lea : Apparatus for Measuring Granular or Powdered Materials
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31.08.1915 William H. Knobloch North Way Motor und Mfg. Comp. : Advertising novelty
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07.09.1915 Kilpatrick, William J. (P) Burroughs (P) Adding Machine Comp. : Adding and listing machine
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07.09.1915 Miller, Robert : Appliance for Measuring Heighth and Distances
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07.09.1915 Walter F. McCaleb McCaleb Machine Comp. : Adding-machine
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14.09.1915 Thieme, Otto (P) Moon-Hopkins (P) Billing Machine Co. : Carriage-shifting mechanism for calculating machines
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14.09.1915 Hopkins, William (P) Wallace : Calculating machine
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14.09.1915 G. F. Wakefield : Car Time Finder
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14.09.1915 Bolling, Baltzar E. J.K. Stewart Mfg. Comp. : Parcel-post-rate indicator
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14.09.1915 H. Oberg : Computing Device
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14.09.1915 Elmer E. Patten Leo Rassieur, Jr. : Adding-machine
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21.09.1915 Wiberg, Helge Allan Aktiebolaget Adderator (P) : Calculating-machine
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21.09.1915 Wales, Charles (P) White Adding Machine Comp. : Keyboard for computing machines
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21.09.1915 J. Boss-Conzelmann : Adding Apparatus
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28.09.1915 C. F. Dieckmann : Slide Rule
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28.01.1915 Turck, Joseph Abraham Valentine (P) : Calculating Machine
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28.09.1915 A. R. Dodge : Integrating Mechanism for Flow Meters
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12.10.1915 von Pein, Edward (P) NCR (P) : Cash register
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12.10.1915 Horton, Allen (P) : Adding and Calculating Machine
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12.10.1915 J. W. Sheperdsom : Flow Meter
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12.10.1915 G. M. Fritz : Calculator
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19.10.1915 Byron Bliss Wells American Cash Register Mfg. Comp. : Check printer and cash register
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19.10.1915 Carl A. Richmond : Device for computing valuations of investment securities
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19.10.1915 John Bricken Rueben Marks : Electrocalculograph
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19.10.1915 Vincent, Jesse Gurney (P) Burroughs (P) Adding Machine Comp. : Adding and listing machine
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19.10.1915 Clair. A. Gilson Gilson Slide Rule Co (P) : Slide Rule
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19.10.1915 C. F. Backstrand & C. M. Hoag : Calculator
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02.11.1915 Johnson D. Beard : Educational appliance
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02.11.1915 Carl R. Rings Julius Petzelberger : Computing-machine
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02.11.1915 Frank C. Rinsche : Check table and keyboard-cover for calculating-machines and the like
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09.11.1915 G. R. Moore : Adding Device
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09.11.1915 Trinks, Franz (P) : Calculating-machine
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09.11.1915 Gubelmann, William S. (P) : Calculating Machine
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16.11.1915 Brandt, Edward J. (P) Brandt Cashier Comp. : Coin delivery apparatus
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16.11.1915 J. Spurgeon : Calculating Machine
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16.11.1915 William H. Brown H.H. Franklin Mfg. Comp. : Decimal mechanism for calculating machines
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16.11.1915 Y. Wang : Computing Instrument
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23.11.1915 William A. Chryst NCR (P) : Multiple cash-register
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Patent:US1161065
23.11.1915 Stella E. Myers : Calculating-machine
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Patent:US1161381
23.11.1915 Charles Hugh Duffy : Calculator
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23.11.1915 Stephen J. James : Educational appliance
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30.11.1915 Trinks, Franz (P) : Calculating machine
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07.12.1915 Frederick Johan Constantijn Baron van Hardenbroek van Ammerstol : Calculating device
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07.12.1915 John J. White J.A. Pierce : Computing instrument
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07.12.1915 Cashmore, Montague (P) : Proportion Calculator
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14.12.1915 Fuller, Frederick (P) NCR (P) : Indicating mechanism
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21.12.1915 Carlin, Samuel E. (P) Underwood (P) Computing Machine Comp. : Calculating machine
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21.12.1915 F. W. Naumann : Register
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21.12.1915 James F. Mays Mays Accounting Machine Comp. : Escapement mechanism
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28.12.1915 Vincent, Jesse Gurney (P) Burroughs (P) Adding Machine Comp. : Adding and listing machine
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27.01.1915 Martinez, Gabriel : Adding machine