Geometrical instruments
Patent
1977-05-09
1978-03-21
Lake, Roy
Geometrical instruments
339176R, 339219R, 339272A, H01R 1358
Patent
active
040800369
ABSTRACT:
A safety plug that includes an elongated neck portion having externally accessible means seated thereto to aid against the electrical wire and thereby substantially reduce or eliminate the tendency of the same to be prematurely pulled loose from the plug connection, a non-conductive material may be employed in manufacturing the plug thereby further enhancing its utility.
REFERENCES:
patent: 2490153 (1949-12-01), O'Donnell
patent: 2865013 (1958-12-01), Kazanowski
patent: 3039074 (1962-06-01), Koenig
patent: 3562701 (1971-02-01), Orr
Jones DeWalden W.
Lake Roy
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