US2734614A
(en )
1956-02-14
Proportional ribbon feed mechanism
GB943821A
(en )
1963-12-04
A cash register or similar accounting machine
GB414377A
(enrdf_load_stackoverflow )
US2078282A
(en )
1937-04-27
Cash kegister
US2284803A
(en )
1942-06-02
Listing adding machine
US3881412A
(en )
1975-05-06
Printer for data processing machines
GB360824A
(en )
1931-11-05
Improvements in printing mechanism for adding machines
US2662628A
(en )
1953-12-15
Line spacing device
US4203681A
(en )
1980-05-20
Single element typewriter with error correction feature
US2577395A
(en )
1951-12-04
Autographic eegister
US1917511A
(en )
1933-07-11
Keyboard lock
US1118682A
(en )
1914-11-24
Calculating-machine.
GB431354A
(en )
1935-07-05
Improvements in or relating to calculating or the like machines
US2575407A
(en )
1951-11-20
Tape feeding and severing mechanism for marking machines
US2203116A
(en )
1940-06-04
Cash register
GB442771A
(en )
1936-02-12
Improvements in or relating to cash registers and similar accounting machines
US3025940A
(en )
1962-03-20
Line lock apparatus
US1576519A
(en )
1926-03-16
Adolph g
US2055623A
(en )
1936-09-29
Calculating machine
GB446754A
(enrdf_load_stackoverflow )
GB213600A
(enrdf_load_stackoverflow )
1900-01-01
GB555659A
(en )
1943-09-01
Improvements in or relating to calculating or like machines
GB191019976A
(en )
1911-08-24
Improvements in Cash Registers and Autographic Devices therefor.
GB425690A
(en )
1935-03-20
Improvements in or relating to calculating and the like machines
GB467784A
(en )
1937-06-23
Improved device for counting words and/or other symbols for use on typewriters or like keyboard instruments