Geometrical instruments
Patent
1975-10-28
1977-09-06
Lake, Roy
Geometrical instruments
339 91R, H01R 1354
Patent
active
040464490
ABSTRACT:
A system for interchangeable attachment of electrical equipment carried on an insulating frame to a mounting plate. Electrical equipment carried on an insulating frame can be quickly and easily attached to a mounted plate by a simple snapping action of detents located on the mounting plate into associated cut outs located on an insulating frame. Once attached to the mounting plate, the equipment and the associated insulating frame can only be removed by depressing a resilient plate in which these detents are located with a screwdriver or similar tool.
REFERENCES:
patent: 3651446 (1972-03-01), Sadogierski et al.
Desmond E. F.
Lake Roy
Striker Michael J.
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