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Patente aus den USA 1955

 US02698715 (espacenet),  US02698715 (uspto) 04.01.1955 P. Spurlino et al Machine Release Mechanism
 US02700823 (espacenet),  US02700823 (uspto) 1955
 US02701687 (espacenet),  US02701687 (uspto) 1955
 US02702159 (espacenet),  US02702159 (uspto) 15.02.1955 Reppert Decimal Point Mechanism
 US02702668 (espacenet),  US02702668 (uspto) 22.02.1955 Dustin Decimal Aligning Mechanism
 US02703677 (espacenet),  US02703677 (uspto) 1955
 US02705109 (espacenet),  US02705109 (uspto) 29.03.1955 Campos Calc Mach Key-board and Differential Actuators
 US02706082 (espacenet),  US02706082 (uspto) 12.04.1955 Lydfors Mult Control Mech for Short Cut Mult
 US02707077 (espacenet),  US02707077 (uspto) 26.04.1955 Wise Ten-Key Indexing System
 US02707592 (espacenet),  US02707592 (uspto) 1955
 US02708797 (espacenet),  US02708797 (uspto) 1955
 US02710141 (espacenet),  US02710141 (uspto) 07.06.1955 Avery, Harold Dividend Divisor Aligning Mechanism
 US02710143 (espacenet),  US02710143 (uspto) 1955
 US02710405 (espacenet),  US02710405 (uspto) 07.06.1955 Lundquist Carriage Cushioning Means for Calc Mach
 US02713458 (espacenet),  US02713458 (uspto) 1955
 US02714254 (espacenet),  US02714254 (uspto) 1955
 US02714985 (espacenet),  US02714985 (uspto) 09.08.1955 Saxby et al EM Operated Totalizer Control Mech for Acctg Mach
 US02714986 (espacenet),  US02714986 (uspto) 09.08.1955 Moody et al Single Cycle Mechanism
 US02714987 (espacenet),  US02714987 (uspto) 09.08.1955 Frieberg Repeat Mechanism for Calc Mach
 US02714988 (espacenet),  US02714988 (uspto) 09.08.1955 Brubaker Keyboard Controls for Adding Machines
 US02714989 (espacenet),  US02714989 (uspto) 09.08.1955 Ellerbeck Calculating Machine
 US02714991 (espacenet),  US02714991 (uspto) 09.08.1955 Hopkins Sign Control Mechanism for Duplex Registers
 US02715779 (espacenet),  US02715779 (uspto) 1955
 US02717121 (espacenet),  US02717121 (uspto) 06.09.1955 Luhn Keyboard
 US02718357 (espacenet),  US02718357 (uspto) 20.09.1955 Sandor Logarithmic Calculator
 US02719359 (espacenet),  US02719359 (uspto) 1955
 US02719669 (espacenet),  US02719669 (uspto) 1955
 US02720961 (espacenet),  US02720961 (uspto) 18.10.1955 Smith Key Latching and Release Mechanism
 US02721697 (espacenet),  US02721697 (uspto) 25.10.1955 Gilpin EM Drive Means for Computing Machines
 US02721698 (espacenet),  US02721698 (uspto) 25.10.1955 Gang, Herman Tabulation Control Means
 US02722376 (espacenet),  US02722376 (uspto) 01.11.1955 Ellerbeck Back Transfer Calc Mach
 US02722377 (espacenet),  US02722377 (uspto) 01.11.1955 Davis Dividend Divisor Aligning Mechanism
 US02724062 (espacenet),  US02724062 (uspto) 15.11.1955 Nolde Electrical Circuit for Suppressing Interference
 US02724552 (espacenet),  US02724552 (uspto) 1955
 US02725194 (espacenet),  US02725194 (uspto) 1955
 US02726809 (espacenet),  US02726809 (uspto) 1955
 US02727688 (espacenet),  US02727688 (uspto) 20.12.1955 Luhn Keyboard Control Mechanism
 US02727689 (espacenet),  US02727689 (uspto) 20.12.1955 Heindorff Ten Digit Keyboard for Calc Mach
 US02728526 (espacenet),  US02728526 (uspto) 27.12.1955 Fowler et al Power Drive Mechanism

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