Plug lock

Details Plug lock Plug lock

1993-02-05

1995-01-03

Burke, Wallace R.

Equipment for production, distribution, or transformation of ene

Distribution, modification or control

Connector, conductor or housing therefor

Patent

active

D03540430

REFERENCES:
patent: 2415602 (1947-02-01), Monaco
patent: 2654073 (1953-09-01), Katz
patent: 2664734 (1954-01-01), McEneaney
patent: 2733416 (1956-01-01), Evalt
patent: 2759492 (1956-08-01), Benson et al.
patent: 4566297 (1986-01-01), Hawley
patent: 4691974 (1987-09-01), Pinkerton
patent: 4812131 (1989-03-01), Sieverman
patent: 4895527 (1990-01-01), Brown
patent: 5055057 (1991-10-01), Boyer
patent: 5190466 (1993-03-01), McVey
Adapter 5272 on p. M-1 of Bryant Wiring Devices Catalog BDB-1504 printed Jun. 1987.
Lightning bolt symbols on p. 140 of Henry Dreyfuss Symbol Sourcebook, .COPYRGT.1972.
Lightning bolt insignia 152 on p. 33 of American Badges & Insignia by Evans E. Kerrigan, .COPYRGT.1967.

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