GB523532A
(en )
1940-07-17
Improvements in totalizers for calculating machines
GB382613A
(en )
1932-10-17
Improvements in or relating to paper carriages particularly for calculating machines
US2831558A
(en )
1958-04-22
Variable proportional letter feed mechanism
GB754403A
(enrdf_load_stackoverflow )
GB497833A
(enrdf_load_stackoverflow )
US2164422A
(en )
1939-07-04
Typewriting machine
US2081423A
(en )
1937-05-25
Listing adding machine
US1277500A
(en )
1918-09-03
Type-writing machine.
US1787489A
(en )
1931-01-06
Carriage equipment for accounting machines
US2330960A
(en )
1943-10-05
Typewriting machine
US1463778A
(en )
1923-07-31
Typewriting machine
US2366468A
(en )
1945-01-02
Paper carriage for accounting machines
GB431354A
(en )
1935-07-05
Improvements in or relating to calculating or the like machines
US1530765A
(en )
1925-03-24
Typewriting machine
US1101544A
(en )
1914-06-30
Writing-machine.
US885715A
(en )
1908-04-28
Type-writing machine.
US1066224A
(en )
1913-07-01
Type-writing machine.
US1614474A
(en )
1927-01-18
Power-operated back spacer for typewriters
GB399019A
(en )
1933-09-28
Improvements in or relating to tally roll and like mechanisms for calculating machines, typewriters and the like machines
US2897943A
(en )
1959-08-04
Carriage return control arrangement
US2337593A
(en )
1943-12-28
Typewriting machine
US2689032A
(en )
1954-09-14
Key operated mechanism for type writing or like machines
US2557976A
(en )
1951-06-26
Action blocking or locking mechanism for power-operated typewriters or like machines
US1561539A
(en )
1925-11-17
Tabulator mechanism for typewriters
US2008014A
(en )
1935-07-16
Typewriting machine