Keysensor

Details Keysensor Keysensor

1986-02-07

1988-07-19

Orsino, Joseph A.

Communications: electrical

Systems

Call station

200 6166, 340568, 34082531, G01D 512

Patent

active

047588195

ABSTRACT:
A keysensor of the present invention is provided with a magnet and a magnetic switch opposedly via a hole for inserting and removing each keyholder containing magnetic metal sheet and consisting of non-magnetic substance, a plurality of magnetic switches are placed at predetermined places, said keysensor makes it possible for said magnetic switches to operate corresponding to said places by using said keyholder containing magnetic metal sheet different in each position and size.

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