US2221861A
(en )
1940-11-19
Calculating machine
GB753419A
(enrdf_load_stackoverflow )
US3045799A
(en )
1962-07-24
Keyboard interlock control means
US1914401A
(en )
1933-06-20
Calculating machine
US3121487A
(en )
1964-02-18
Paper carriage control mechanism for accounting machines
US2926846A
(en )
1960-03-01
Predetermined carriage shifting and dividend
US2364769A
(en )
1944-12-12
Accounting machine
GB732239A
(enrdf_load_stackoverflow )
US3331556A
(en )
1967-07-18
Power driving device for a calculating machine
US2577395A
(en )
1951-12-04
Autographic eegister
GB900541A
(en )
1962-07-04
Document sorting and accounting systems and apparatus
US1115889A
(en )
1914-11-03
Adding and listing machine.
US2107142A
(en )
1938-02-01
Listing adding machine
US1294704A
(en )
1919-02-18
Elimination and special-signal mechanism.
US3410386A
(en )
1968-11-12
Record material feed control
GB749504A
(enrdf_load_stackoverflow )
GB285885A
(enrdf_load_stackoverflow )
US3011699A
(en )
1961-12-05
Repeat control mechanism for cash registers and accounting machines
GB497640A
(enrdf_load_stackoverflow )
US3633819A
(en )
1972-01-11
Automatic repeat mechanism
US2905306A
(en )
1959-09-22
Carriage movement controlling mechanism
GB822428A
(enrdf_load_stackoverflow )
GB499027A
(enrdf_load_stackoverflow )
GB607744A
(enrdf_load_stackoverflow )
GB241213A
(enrdf_load_stackoverflow )