Patent

Patentdatenbank USA 1921

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Patent:US1367877 08.02.1921 Hopkins, William Wallace (P) : Calculating-machine
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Patent:US1369097 22.02.1921 Goldberg, Hyman Eli (P) Goldberg Calculating Machine (P) Co : Calculating-machine
Patent:US1369145 22.02.1921 Thomas Edward G Toledo Scale Co : Price-calculating weighing-scale
Patent:US1369415 22.02.1921 Frederick L. Fuller NCR (P) : Cash-register
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Patent:US1370239 01.03.1921 Stickney, Burnham (P) Underwood (P) Computing Machine Comp. : Combined typewriting and computing machine
Patent:US1370360 01.03.1921 Pitman, Henry L. (P) Underwood (P) Computing Machine Comp. : Combined typewriting and computing machine
Patent:US1370426 01.03.1921 Louis E. Giles Underwood (P) Computing Machine Comp. : Computing machine
Patent:US1370427 01.03.1921 Gilles, Louis E. (P) Underwood Computing Machine Comp. : Computing machine
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Patent:US1370493 01.03.1921 Blaustein, Joseph Controller Comp., Inc. : Calculating machine
Patent:US1371138 08.03.1921 Joseph H. Bair Lewis H. Tylor James O. David William C. Haddock : Calculating-machine
Patent:US1371526 15.03.1921 Martin Teetor Teetor Company : Calculating Machine
Patent:US1371653 15.03.1921 von Pein, Edward (P) NCR (P) : Cash register
Patent:US1372965 29.03.1921 Lake, Clair (P) Tabulating Machine (P) Company : Electric transfer device
Patent:US1373056 29.03.1921 Crowder Havy Q R : Ellipsograph
Patent:US1374762 12.04.1921 Poole, Arthur (P) Remington (P) Accounting Machine Comp. : Calculating-machine
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Patent:US1378993 24.05.1921 Erich Böhnke : Slide Rule
Patent:US1379268 24.05.1921 Lake, Clair (P) Tabulating Machine (P) Company : Printing tabulator
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Patent:US1382286 21.06.1921 Hart, Frederick (P) Underwood (P) Computing Machine Comp. : Combined typewriting and computing machine
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Patent:US1383492 05.07.1921 Howard Seely Frank : Calculating Device
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Patent:US1386022 02.08.1921 Heber C. Peters Peters-Morce Mfg. Corp. : Adding-machine
Patent:US1386758 09.08.1921 Charles Birth Wales Adding Machine Comp. : Calculating-machine
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Patent:US1397944 22.11.1921 Thomas J. Dalzell : Calculating device
Patent:US1398068 22.11.1921 Doerr, Fred (P) : Computing Machine
Patent:US1398576 22.11.1921 Shipley, Bernis (P) : Cash Register
Patent:US1398914 29.11.1921 Pierce Robert A : Slide-rule
Patent:US1399450 06.12.1921 Trinks, Franz (P) : Paper-strip feed for adding-machines
Patent:US1400004 13.12.1921 Schaller, Carl (P) Grimme, Natalis u. Co. (P) : Calculating machine
Patent:US1400106 13.12.1921 Trinks, Franz (P) : Adding Machine
Patent:US1400197 13.12.1921 Andrew C. Wood Stewart-Warner Speedometer Corp. : Revolution-counter resetting
Patent:US1400842 20.12.1921 Harry H. Vickers Underwood (P) Computing Machine Comp. : Combined typewriting- and computing machine
Patent:US1401225 27.12.1921 Oscar Woodward Remington (P) Accounting Machine Comp. : Computing-machine
Patent:US1574249 17.02.1921 R. W. Hook : Adding Machine
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Patentdatenbank USA 1921