Telephone lock

Details Telephone lock Telephone lock

1982-03-11

1984-03-13

Rubinson, G. Z.

70172, H04M 166

Patent

active

044369670

ABSTRACT:
A telephone lock for telephones of the type having apertured caps, each forming an annular external groove between the respective cap and the handset, includes a locking cup mountable over either or both of the caps, and a locking arrangement which includes a stationary locking element extending into the groove, and a movable locking element mounted on the locking cup for displacement between a retracted position and a locked position in which the movable locking element is located exteriorly of the groove and extends into the groove, respectively.

REFERENCES:
patent: 1083569 (1914-01-01), Van Hoevenberg
patent: 1138389 (1915-05-01), Luby
patent: 1422372 (1922-07-01), Pardee
patent: 1462404 (1923-07-01), White
patent: 1591192 (1926-07-01), Suporter
patent: 1760977 (1930-06-01), Duffy
patent: 1898053 (1933-02-01), Hook
patent: 1912872 (1933-06-01), Trautner
patent: 3167617 (1965-01-01), Gerhardt
patent: 3299207 (1967-01-01), Cooke
"Gas Cap Lock", J. C. Whitney & Co. Catalog, No. 326A, p. A.

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