GB1020013A
(en )
1966-02-16
Improvements in or relating to electric encoding keyboards
GB1084690A
(enrdf_load_stackoverflow )
GB632379A
(en )
1949-11-28
Improvements in or relating to keyboards, especially for electrically-controlled accounting or card-punching machines
GB693679A
(en )
1953-07-01
Calculating machines
GB1244594A
(en )
1971-09-02
A keyboard for calculating machines, accounting machines, teleprinting machines or the like
US3489341A
(en )
1970-01-13
Automatic cycle control mechanism for business machines
GB608988A
(enrdf_load_stackoverflow )
GB191346A
(en )
1923-01-04
Improvements in and relating to keyboard and differential mechanism for cash registers and like machines
US2063740A
(en )
1936-12-08
Calculating machine
GB681036A
(enrdf_load_stackoverflow )
GB955820A
(enrdf_load_stackoverflow )
GB275968A
(enrdf_load_stackoverflow )
GB215746A
(en )
1925-08-04
Improvements in cash registers and like machines
GB228184A
(enrdf_load_stackoverflow )
GB302596A
(enrdf_load_stackoverflow )
GB1243640A
(en )
1971-08-25
Selectively operable mechanism for keyboard operating machines
GB720088A
(enrdf_load_stackoverflow )
GB147763A
(enrdf_load_stackoverflow )
GB600746A
(en )
1948-04-16
Improvements in or relating to calculating machines
GB813083A
(en )
1959-05-06
Calculating machines or similar accounting machines
GB453505A
(en )
1936-09-14
Improvements in or relating to totalizer control mechanism for calculating machines, accounting machines or similar machines
GB497462A
(enrdf_load_stackoverflow )
GB200585A
(enrdf_load_stackoverflow )
GB224244A
(en )
1925-03-27
Improvements in keyboard and differential mechanism for cash registers or calculating machines
GB420431A
(enrdf_load_stackoverflow )