GB1020013A
(en )
1966-02-16
Improvements in or relating to electric encoding keyboards
GB1084690A
(enExample )
GB1402654A
(en )
1975-08-13
Multiplexing connection between a key board an a circuit
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
GB608988A
(enExample )
GB191346A
(en )
1923-01-04
Improvements in and relating to keyboard and differential mechanism for cash registers and like machines
GB681036A
(enExample )
GB228184A
(enExample )
GB511438A
(enExample )
GB1243640A
(en )
1971-08-25
Selectively operable mechanism for keyboard operating machines
GB720088A
(enExample )
GB147763A
(enExample )
GB600746A
(en )
1948-04-16
Improvements in or relating to calculating machines
GB206467A
(enExample )
GB813083A
(en )
1959-05-06
Calculating machines or similar accounting machines
GB947448A
(enExample )
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
GB453505A
(en )
1936-09-14
Improvements in or relating to totalizer control mechanism for calculating machines, accounting machines or similar machines
GB497462A
(enExample )
GB200585A
(enExample )
GB420431A
(enExample )
GB508141A
(enExample )
GB191109167A
(en )
1911-08-09
Improvements in or relating to the Key Board or Setting Mechanism of Cash Registers and the like.