US1197277A
(en )
1916-09-05
Number printing and punctuating mechanism.
GB488660A
(enrdf_load_stackoverflow )
US2079355A
(en )
1937-05-04
Automatic overdraft device for
US2254760A
(en )
1941-09-02
Computing and printing machine
US3069077A
(en )
1962-12-18
Rqsati
US1914401A
(en )
1933-06-20
Calculating machine
US2827230A
(en )
1958-03-18
Ten key early entry and index retention mechanism
US2577395A
(en )
1951-12-04
Autographic eegister
US2075540A
(en )
1937-03-30
Combined typewriting and computing machine
US2177817A
(en )
1939-10-31
Accounting machine
US1182975A
(en )
1916-05-16
Cash and credit register.
US3317128A
(en )
1967-05-02
Pin carriage input arrangement
US2620915A
(en )
1952-12-09
Selective word printing device
US2251969A
(en )
1941-08-12
Accounting machine
US2614749A
(en )
1952-10-21
Totalizer actuator control mechanism
US2289403A
(en )
1942-07-14
Accounting machine
US712381A
(en )
1902-10-28
Calculating-machine.
US2222681A
(en )
1940-11-26
Calculating machine
GB285885A
(enrdf_load_stackoverflow )
GB191219273A
(en )
1913-03-13
Improvements in the Keyboards and Connecting Members of Calculating Machines.
GB190828253A
(en )
1909-12-28
Improvements in and relating to Mechanical Calculators.
GB190218853A
(en )
1903-05-28
Improvements in Calculating Machines.
GB241213A
(enrdf_load_stackoverflow )
GB648389A
(enrdf_load_stackoverflow )
GB614346A
(enrdf_load_stackoverflow )