Dual-standard electric plug

Details Dual-standard electric plug Dual-standard electric plug

1975-11-17

1977-03-22

Lake, Roy

Geometrical instruments

339 31M, H01R 2900

Patent

active

040133303

ABSTRACT:
A dual-standard electrical plug comprising an insert carrying two different pairs of socket pins, said insert being insertable into a plug casing in either one of two orientations so that one pair of socket pins projects and the other pair is concealed.

REFERENCES:
patent: 2450657 (1948-10-01), Guernsey

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