GB228632A
(enrdf_load_stackoverflow )
US3225884A
(en )
1965-12-28
Type lever action control arrangement
US2353057A
(en )
1944-07-04
Printing mechanism
GB899368A
(en )
1962-06-20
Improved key operating machine
US2682371A
(en )
1954-06-29
Pin carriage shifting mechanism for ten-key multiplying machines
US2938615A
(en )
1960-05-31
Type bar drive
US2255010A
(en )
1941-09-02
Time recorder-
US3752289A
(en )
1973-08-14
Typewriter escapement and control devices therefor
GB702043A
(en )
1954-01-06
A snap-action actuating mechanism
US3664478A
(en )
1972-05-23
Mutual locking device for an office machine with electric keyboard
GB425691A
(en )
1935-03-20
Improvements in or relating to power operated typewriters
US2702622A
(en )
1955-02-22
Paper feeding means in accounting machines
GB617358A
(en )
1949-02-04
Improvements in or relating to machines used in perforating cards for use in statistical machines
US3133499A
(en )
1964-05-19
Printing mechanism
US2886638A
(en )
1959-05-12
Backspace mechanism
US2470961A
(en )
1949-05-24
Card holder actuated time recorder
US2499053A
(en )
1950-02-28
Automatic locking and releasing device for shift keys on typewriters
US2629037A
(en )
1953-02-17
Electrical switch
US2969432A
(en )
1961-01-24
Non-interfering tape feed-out mechanism
US1104125A
(en )
1914-07-21
Attachment for regulating time-recording registers.
US2085175A
(en )
1937-06-29
Teletypewriter
US2335964A
(en )
1943-12-07
Time recorder
US1717230A
(en )
1929-06-11
Printing machine
US2845612A
(en )
1958-07-29
Electromagnetic switching system
US1577121A
(en )
1926-03-16
Automatic control device