US3618738A
(en )
1971-11-09
Vertical paper feed for a drafting typewriter
GB709185A
(https= )
US3353646A
(en )
1967-11-21
Typewriter having means to store characters selected during carriage movements
US2436126A
(en )
1948-02-17
Apparatus for recording or transmitting intelligence
US2478630A
(en )
1949-08-09
Power-operated printing machine
GB1004128A
(en )
1965-09-08
Improvements in or relating to keyboard operated machines
SE307142B
(https= )
1968-12-23
GB843819A
(en )
1960-08-10
Improvements in typewriter mechanisms
GB868453A
(en )
1961-05-17
Improvements in or relating to typewriters and the like including tabulating mechanisms
US3021937A
(en )
1962-02-20
Selective interlock mechanism
US2567937A
(en )
1951-09-18
Power-operated carriage return mechanism for typewriting and like machines
US2897941A
(en )
1959-08-04
Type bar trip mechanism
US3045799A
(en )
1962-07-24
Keyboard interlock control means
GB1049880A
(en )
1966-11-30
Variable spacing mechanism for typewriters and like machines
GB748757A
(https= )
US2164422A
(en )
1939-07-04
Typewriting machine
US3581860A
(en )
1971-06-01
Method and apparatus for shifting a typing element
US2832455A
(en )
1958-04-29
Strip feeding mechanism
GB1497322A
(en )
1978-01-05
Document feeding apparatus and latching mechanism
GB632717A
(en )
1949-12-05
Improvement in typewriting machine
GB304322A
(en )
1930-04-22
Improvements in or relating to paper feeding mechanism for record-card-controlled statistical machines
US2255670A
(en )
1941-09-09
Tabulating mechanism
US2904159A
(en )
1959-09-15
Proportional spacing mechanism for typewriters
GB684274A
(en )
1952-12-17
Improvements in or relating to keyboards
US2905306A
(en )
1959-09-22
Carriage movement controlling mechanism