GB1078639A
(ko )
GB1217455A
(en )
1970-12-31
Improvements in or relating to electrical connectors
US4788623A
(en )
1988-11-29
Key operated mechanism for producing coded signal combinations for selecting a function of a multifunctional device
GB1185557A
(en )
1970-03-25
Contactless Electronic Switching Devices
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
GB1175584A
(en )
1969-12-23
Improvements in or relating to Programming Switch Contact Assemblies
GB1490143A
(en )
1977-10-26
Magnetically operable electric switches
US4268814A
(en )
1981-05-19
Solid state keyboard
ES2143581T3
(es )
2000-05-16
Pieza de zocalo con un aparato de conmutacion electromagnetico, especialmente un contactor.
US2689279A
(en )
1954-09-14
Electric switch
US3293362A
(en )
1966-12-20
Encoding keyboard
US3714611A
(en )
1973-01-30
Solid state switch construction
US4203093A
(en )
1980-05-13
Solid state keyswitch arrangement
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
EP0111403B1
(en )
1988-04-20
Verifying device for a key card
US3612241A
(en )
1971-10-12
Keyboard switch construction
SU959060A1
(ru )
1982-09-15
Бесконтактна клавиша
US2796489A
(en )
1957-06-18
Multiple circuit card key switch assembly
US3874653A
(en )
1975-04-01
Document sorting system
GB1502484A
(en )
1978-03-01
Pushbutton switches