Geometrical instruments
Patent
1980-03-10
1982-01-19
Brown, Thomas W.
Geometrical instruments
70 57, 70DIG72, 339 37, E05B 7300, H01R 1360, H04M 166
Patent
active
043118836
ABSTRACT:
A lock designed specifically to lock up a plug-in socket of a modular type telephone; the lock including a jack that snap locks into the socket, a key-operated bolt for unlocking the jack therefrom, and an integral clamp for selectively clamping around the extension cord extending from a telephone desk set for securing the same from theft.
REFERENCES:
patent: 2759492 (1956-08-01), Benson et al.
patent: 2955272 (1960-10-01), Gallardo
Brown Thomas W.
Miller Richard L.
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