Security device for a telephone instrument

Details Security device for a telephone instrument Security device for a telephone instrument

1988-06-13

1990-06-26

Ng, Jin F.

Telephonic communications

Terminal accessory or auxiliary equipment

Locking device

379441, H04M 166

Patent

active

049378600

ABSTRACT:
A security device for a telephone instrument including a separate handset to prevent full access to the telephone dial or push-buttons but allow unobstructed access to the handset. The instrument is placed between base and cover portions of the device to partially enclose the instrument and block access to the dial or push buttons to prevent outgoing calls, which portions may be releasably locked together with a locking device.

REFERENCES:
patent: 2928909 (1960-03-01), Allen
patent: 3391256 (1968-07-01), Nawman
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patent: 4005279 (1977-01-01), Richter
patent: 4204097 (1980-05-01), Schmit
patent: 4280025 (1981-07-01), Carlberg
patent: 4304971 (1981-12-01), Flax
patent: 4323739 (1982-04-01), Flax et al.
patent: 4355212 (1982-10-01), Kosten
patent: 4396810 (1983-08-01), Cover
patent: 4398067 (1983-08-01), Rubinstein et al.
patent: 4451713 (1984-05-01), Wittes
patent: 4741032 (1988-04-01), Hampton

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