GB147763A
(enrdf_load_stackoverflow )
GB1172819A
(en )
1969-12-03
Keyboard Mechanisms.
US2656980A
(en )
1953-10-27
Key operating means for computing machines
GB1139391A
(en )
1969-01-08
Power driven type bar actuating mechanism
GB1154111A
(en )
1969-06-04
Encoder.
GB1084690A
(enrdf_load_stackoverflow )
US3086701A
(en )
1963-04-23
Capellaro
GB344380A
(enrdf_load_stackoverflow )
GB1243640A
(en )
1971-08-25
Selectively operable mechanism for keyboard operating machines
US3750796A
(en )
1973-08-07
Self-interlocking keyboard
GB166488A
(enrdf_load_stackoverflow )
GB228184A
(enrdf_load_stackoverflow )
GB362451A
(enrdf_load_stackoverflow )
GB526703A
(enrdf_load_stackoverflow )
GB191219273A
(en )
1913-03-13
Improvements in the Keyboards and Connecting Members of Calculating Machines.
GB348105A
(enrdf_load_stackoverflow )
GB208232A
(enrdf_load_stackoverflow )
GB550496A
(enrdf_load_stackoverflow )
GB672771A
(enrdf_load_stackoverflow )
GB373131A
(enrdf_load_stackoverflow )
GB206467A
(enrdf_load_stackoverflow )
GB146792A
(enrdf_load_stackoverflow )
GB768516A
(enrdf_load_stackoverflow )
GB608988A
(enrdf_load_stackoverflow )
GB509441A
(enrdf_load_stackoverflow )