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1956-11-06
Key operated multiple electric circuit switch
GB1078639A
(enrdf_load_stackoverflow )
ATE192262T1
(de )
2000-05-15
Elektrischer schalter mit einem magnetischen antrieb
US4788623A
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1988-11-29
Key operated mechanism for producing coded signal combinations for selecting a function of a multifunctional device
GB1185557A
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1970-03-25
Contactless Electronic Switching Devices
GB1020013A
(en )
1966-02-16
Improvements in or relating to electric encoding keyboards
GB1168245A
(en )
1969-10-22
Arrangement for Signalling Extreme Positions of a Movable Member
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(en )
1972-01-25
Solid-state keyboard
GB1019998A
(en )
1966-02-09
Imformation handling systems
US3713056A
(en )
1973-01-23
Electromagnetic switch assembly
US3488613A
(en )
1970-01-06
Magnetic keyboard switch
CA1165398A
(en )
1984-04-10
Adjustable flux generator for a magnetically activated electronic switch
US3544934A
(en )
1970-12-01
Proximity switch-type control means
GB1490143A
(en )
1977-10-26
Magnetically operable electric switches
US4268814A
(en )
1981-05-19
Solid state keyboard
US2381763A
(en )
1945-08-07
Inductive device
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1954-09-14
Electric switch
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1973-01-30
Solid state switch construction
US6262647B1
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2001-07-17
Magnetic reed switching array
GB937098A
(en )
1963-09-18
Punch mechanism verifying apparatus
GB1168244A
(en )
1969-10-22
An Electromagnetic Apparatus having an Arrangement for Signalling the Attracted Position of the Armature of the Electromagnet
US3585322A
(en )
1971-06-15
Digitally operable magnetic reed switches
GB1504947A
(en )
1978-03-22
Rocking key assemblies
US3678478A
(en )
1972-07-18
Stacking arrangement which provides self-biasing for single wall domain organizations
SU959060A1
(ru )
1982-09-15
Бесконтактна клавиша