Smoke detector

Details Smoke detector Smoke detector

1981-03-25

1983-05-31

Lucas, Susan J.

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Alarm or control thereof

D1006

Patent

active

D02691612

REFERENCES:
patent: D253525 (1979-11-01), Wilson
Graviner Fire Protection Systems Brochure, 1978, p. 2, Fixed Temperature Protector.

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