GB721195A
(enExample )
1900-01-01
US2121683A
(en )
1938-06-21
Calculating machine
US1927761A
(en )
1933-09-19
Power drive for typewriters
US3694606A
(en )
1972-09-26
Elastic diaphragm switch actuator
GB632379A
(en )
1949-11-28
Improvements in or relating to keyboards, especially for electrically-controlled accounting or card-punching machines
US1357423A
(en )
1920-11-02
Accountingr-machine-control means
US3712965A
(en )
1973-01-23
Switch operating mechanism for limit switches
GB557725A
(en )
1943-12-02
Improvements in and relating to contact mountings, more particularly for centrifugally operated electric switches
GB706013A
(en )
1954-03-24
Improvements in or relating to telephone subsets
US2055623A
(en )
1936-09-29
Calculating machine
GB1494461A
(en )
1977-12-07
Fault-current operated circuit-breakers
US3003688A
(en )
1961-10-10
Menge
GB845382A
(en )
1960-08-24
Electric switch interposed in a mechanical linkage
GB783401A
(en )
1957-09-25
Improvements in and relating to an electric snap-action switch
GB519605A
(en )
1940-04-01
Improvements in snap-action electric switches
US1310965A
(en )
1919-07-22
rinsche
GB585069A
(en )
1947-01-29
Improvements in lever linkage for the transmission of power
GB190901925A
(en )
1910-02-28
Improvements in or relating to Adding Machines.
GB758692A
(en )
1956-10-10
Improvements in controlling switches for electro-magnetically operated key levers oftypewriters, accounting machines and the like
GB191506359A
(en )
1916-04-27
Improvements in Locking Mechanism for Key Controlled Machines such as Cash Registers and the like.
GB194968A
(en )
1923-03-22
Improvements in electrical tumbler switches
GB190805320A
(en )
1908-08-06
Improvements in Adding Machines.
GB1186635A
(en )
1970-04-02
Electric Typewriter Keyboard Operated Mechanism
GB189724114A
(en )
1898-09-17
Improvements in or relating to Type Setting Machines.
GB765291A
(enExample )