GB530359A
(en )
1940-12-10
Improvements in and relating to line-spacer mechanism for typing machines
US2407195A
(en )
1946-09-03
Typewriting machine
GB191115177A
(enrdf_load_stackoverflow )
US3045799A
(en )
1962-07-24
Keyboard interlock control means
US2655245A
(en )
1953-10-13
Tabulating mechanism for type writers and like machines
US2702622A
(en )
1955-02-22
Paper feeding means in accounting machines
US1433737A
(en )
1922-10-31
Combined typewriting and computing machine
US1883892A
(en )
1932-10-25
Walther flach
GB292619A
(enrdf_load_stackoverflow )
GB1122887A
(en )
1968-08-07
A data entry machine
GB543965A
(enrdf_load_stackoverflow )
GB807114A
(en )
1959-01-07
Improvements in and relating to proportional spacing mechanism for typewriters
US1643654A
(en )
1927-09-27
Typewriting machine
GB534146A
(enrdf_load_stackoverflow )
GB191114816A
(en )
1912-03-21
Improvements in Combined Adding and Typewriting Machines.
GB191129373A
(en )
1912-11-28
Improvements in or relating to Adding and Listing or like Machines.
GB445540A
(enrdf_load_stackoverflow )
GB919998A
(en )
1963-02-27
Paper carriage control mechanism for accounting machines
GB109562A
(en )
1917-09-20
Improvements in Shift Mechanism for Typewriters.
GB259267A
(enrdf_load_stackoverflow )
GB190417525A
(en )
1905-06-01
Improvements relating to the Key Action of Cash Registers.
GB298569A
(en )
1929-08-15
Improved shift mechanism for typewriting machines
GB207070A
(enrdf_load_stackoverflow )
GB191311823A
(en )
1914-03-05
Improvements in and relating to Adding and Listing Machines.
GB340256A
(enrdf_load_stackoverflow )