GB550978A
(en )
1943-02-03
Improvements in or relating to calculating or similar accounting machines
US2148861A
(en )
1939-02-28
Impression mechanism
US2684745A
(en )
1954-07-27
Teletypewriter
GB330264A
(https= )
US2689281A
(en )
1954-09-14
Self-cycling ratchet-stepping switch
US1886769A
(en )
1932-11-08
Ticket issuing machine
GB737751A
(en )
1955-09-28
Improvements in or relating to a typewriter controlled punching apparatus
US2833209A
(en )
1958-05-06
Consecutive number printer
US2692966A
(en )
1954-10-26
Machine control jog switch
US2392275A
(en )
1946-01-01
Recording apparatus
US3270853A
(en )
1966-09-06
Keyboard apparatus having means to control duration of actuation of circuit
US2388351A
(en )
1945-11-06
Signal controlled printing apparatus
US3232402A
(en )
1966-02-01
Stepwise operable power roll
US2728905A
(en )
1955-12-27
Line feed failure indicator
US1302616A
(en )
1919-05-06
Automatic tabulating-machine.
US1534531A
(en )
1925-04-21
Relayless counter
US3604548A
(en )
1971-09-14
Recording arrangement for typing and punching the same information
GB216142A
(en )
1925-08-14
Improvements in or relating to statistical machines
US2490476A
(en )
1949-12-06
Printing telegraph system
US2919006A
(en )
1959-12-29
Control for power-operated office machines
GB846781A
(en )
1960-08-31
Strip feeding mechanism for typewriters and like machines
GB909935A
(en )
1962-11-07
Calculating or similar accounting machine
GB410663A
(en )
1934-05-24
Improvements in and relating to printing telegraphs applicable in particular to ultra-rapid telegraphy
US3003693A
(en )
1961-10-10
Selection mechanism
US1923273A
(en )
1933-08-22
Printing telegraph