Signals and indicators – Combined functions
Patent
1982-08-17
1985-06-11
Stephan, Steven L.
Signals and indicators
Combined functions
116 76, 116 86, 354 76, G03B 1900, G08B 104
Patent
active
045221464
ABSTRACT:
Presented is a burglar alarm system for installation in residential, commercial or industrial premises. The burglar alarm system incorporates photographic equipment which photographs the intruder and a pneumatically operated audible alarm.
REFERENCES:
patent: 1978500 (1934-10-01), Meyer
patent: 2139703 (1938-12-01), Taylor
patent: 3045775 (1962-07-01), Pretini
patent: 3057321 (1962-10-01), Pretini
patent: 3594747 (1971-07-01), Cronin
patent: 3682129 (1972-08-01), Philbrick
patent: 4035792 (1977-07-01), Price
Corr Denis E.
Leavitt John J.
Stephan Steven L.
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