US2532228A
(en )
1950-11-28
Electrically operated typewriter
GB550978A
(en )
1943-02-03
Improvements in or relating to calculating or similar accounting machines
US2148861A
(en )
1939-02-28
Impression mechanism
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
GB204676A
(en )
1924-08-18
Improvements in or relating to printing mechanism, particularly applicable to tabulating machines or like record-cardcontrolled machines
US2833209A
(en )
1958-05-06
Consecutive number printer
US2692966A
(en )
1954-10-26
Machine control jog switch
US2392275A
(en )
1946-01-01
Recording apparatus
US2388351A
(en )
1945-11-06
Signal controlled printing apparatus
US3232402A
(en )
1966-02-01
Stepwise operable power roll
GB818884A
(en )
1959-08-26
Improvements in and relating to printing apparatus
US3334719A
(en )
1967-08-08
Miniaturized electrically operated printer having automatic carriage return
US1534531A
(en )
1925-04-21
Relayless counter
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
US1923273A
(en )
1933-08-22
Printing telegraph
GB703315A
(en )
1954-02-03
Improvements in or relating to keyboard-operated mechanical machines for perforatingcards
US2195854A
(en )
1940-04-02
Signal transmitting means
GB183867A
(en )
1922-07-26
Improvements relating to apparatus for compiling and printing statistics from perforated record cards
GB331539A
(enExample )