Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent
1981-02-09
1982-12-14
Grimley, A. T.
Electricity: circuit makers and breakers
Multiple circuit control
Multiple switch
200159R, 400495, H01H 312
Patent
active
043639429
ABSTRACT:
A key assembly for the keyboards of electric typewriters or similar machines in which a one-piece baseplate forms the cover for the assembly. Crossing webs on the bottom side of the baseplate serve as spacers for the keyboard elements and also as the basis for mounting a contact mat provided with contact beads as well as the associated printed circuit board. The keyboard elements are mounted in the baseplate from above.
REFERENCES:
patent: 3141945 (1964-07-01), Juggins
patent: 4056700 (1977-11-01), Stannek
patent: 4066860 (1978-01-01), Kawasaki
patent: 4127752 (1978-11-01), Lowthorp
patent: 4262182 (1981-04-01), Basler et al.
patent: 4286131 (1981-08-01), Kopish et al.
Deeg Reinhard
Hack Oswald
Ginsburg Morris
Grimley A. T.
International Standard Electric Corporation
Michals William J.
Raden James B.
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