Geometrical instruments
Patent
1977-06-03
1979-04-10
Lake, Roy
Geometrical instruments
339186M, H01R 1364
Patent
active
041485459
ABSTRACT:
A connection plug element is provided as a plurality of contact plates being supported in a frame structure. The frame structure includes a plurality of slotted insertion passages for the contact plates which extend into the frame to a midpoint stop zone. The slotted grooves allow coding of the contact plates in a manner to be associated with a socket connection having corresponding socket openings. The plug element is useful in installations of instruments and switching panels.
REFERENCES:
patent: 1417928 (1947-03-01), Guernesy
patent: 2750572 (1956-06-01), Fox
patent: 2888660 (1959-05-01), Fox
patent: 3656086 (1972-04-01), Debaigt
Desmond E. F.
Eckardt AG
Lake Roy
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