US2221861A
(en )
1940-11-19
Calculating machine
GB523532A
(en )
1940-07-17
Improvements in totalizers for calculating machines
GB409101A
(enrdf_load_stackoverflow )
US1403329A
(en )
1922-01-10
Typewriting machine
US2255623A
(en )
1941-09-09
Coaiputing machine
US2364769A
(en )
1944-12-12
Accounting machine
US2718354A
(en )
1955-09-20
sharpe
US1682196A
(en )
1928-08-28
Cash register
US2577395A
(en )
1951-12-04
Autographic eegister
US1943548A
(en )
1934-01-16
Combined typewriting and computing machine
US2615622A
(en )
1952-10-28
Rebound preventing means for
US2248202A
(en )
1941-07-08
Combined typewriting and computing
US836130A
(en )
1906-11-20
Adding-machine.
US1946602A
(en )
1934-02-13
Cash register
US2614749A
(en )
1952-10-21
Totalizer actuator control mechanism
GB191309877A
(en )
1914-04-23
Improvements in Registering Mechanism for Cash Registers, Calculating Machines and Registering and the like Apparatus.
US1710775A
(en )
1929-04-30
Akb goi
US1442576A
(en )
1923-01-16
Combined typewriting and computing machine
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
US1013211A
(en )
1912-01-02
Combination type-writing and adding machine.
GB420807A
(enrdf_load_stackoverflow )
1900-01-01
GB190828253A
(en )
1909-12-28
Improvements in and relating to Mechanical Calculators.
GB191219273A
(en )
1913-03-13
Improvements in the Keyboards and Connecting Members of Calculating Machines.
GB190009811A
(en )
1900-07-14
Improvements in or relating to Combined Typewriting and Computing Machines.
GB438369A
(enrdf_load_stackoverflow )