GB523532A
(en )
1940-07-17
Improvements in totalizers for calculating machines
GB783870A
(enExample )
GB660263A
(en )
1951-11-07
Improvements in or relating to power mechanism for typewriters and like machines
US2209279A
(en )
1940-07-23
Typewriting machine
US2528450A
(en )
1950-10-31
Power regulating means for typewriters
US2675902A
(en )
1954-04-20
Operation control interlocking mechanism for power-operated typewriters or like machines
US2971625A
(en )
1961-02-14
Repeat actuation arrangement for typewriters
US2270614A
(en )
1942-01-20
Accounting machine
US3204747A
(en )
1965-09-07
Stop setting and clearing mechanism for typewriting and like printing machines
US2930466A
(en )
1960-03-29
Margin control for typewriters
US3838762A
(en )
1974-10-01
Type action arrangement
US2441375A
(en )
1948-05-11
Key locking device for power operated typewriting machines
US2897943A
(en )
1959-08-04
Carriage return control arrangement
US2699893A
(en )
1955-01-18
Function control change mechanism
GB792332A
(en )
1958-03-26
Improvements in operation controlling mechanism for typewriters or like machines
US2647611A
(en )
1953-08-04
Carriage control at tabulation rebounding
US2558413A
(en )
1951-06-26
Carriage rebound checking device
US2453287A
(en )
1948-11-09
Power operating mechanism for typewriting machines
US2330960A
(en )
1943-10-05
Typewriting machine
US3269511A
(en )
1966-08-30
Typewriter carriage positioning mechanism
US2557976A
(en )
1951-06-26
Action blocking or locking mechanism for power-operated typewriters or like machines
US2803329A
(en )
1957-08-20
Margin control for typewriters
US1522495A
(en )
1925-01-13
Typewriting machine
US1235158A
(en )
1917-07-31
Type-writer tabulating mechanism.
US1967437A
(en )
1934-07-24
Typewriting machine