GB424149A
(en )
1935-02-15
Improvements in or relating to release control mechanism for calculating machines, accounting machines, and similar machines
GB400269A
(enrdf_load_stackoverflow )
GB382613A
(en )
1932-10-17
Improvements in or relating to paper carriages particularly for calculating machines
US2012317A
(en )
1935-08-27
Paper equipment for accounting machines
US2288916A
(en )
1942-07-07
Calculating machine
US1913892A
(en )
1933-06-13
Tyfjswriting and calculating machine
US3048252A
(en )
1962-08-07
Carriage return control means
US2248202A
(en )
1941-07-08
Combined typewriting and computing
US1204612A
(en )
1916-11-14
Back-spacing mechanism.
US2711855A
(en )
1955-06-28
Automatic non-tabulating mechanism for accounting machines
USRE23031E
(en )
1948-08-24
Calculating machine
GB425690A
(en )
1935-03-20
Improvements in or relating to calculating and the like machines
US2894615A
(en )
1959-07-14
Carriage movement controls for accounting machines
US2139131A
(en )
1938-12-06
Calculating machine
US2575407A
(en )
1951-11-20
Tape feeding and severing mechanism for marking machines
US2905306A
(en )
1959-09-22
Carriage movement controlling mechanism
US3600555A
(en )
1971-08-17
Dual function motor key for calculators
GB431354A
(en )
1935-07-05
Improvements in or relating to calculating or the like machines
US1932646A
(en )
1933-10-31
Combined typewriting and computing machine
US3601044A
(en )
1971-08-24
Printer mechanism
GB442771A
(en )
1936-02-12
Improvements in or relating to cash registers and similar accounting machines
US2057161A
(en )
1936-10-13
Calculating machine
GB447485A
(enrdf_load_stackoverflow )
GB190628686A
(en )
1907-06-27
Improvements in Adding and Recording Machines.
GB441387A
(en )
1936-01-20
Improvements in or relating to a type wheel typewriter