Smoke detector

Details Smoke detector Smoke detector

1983-08-19

1985-07-23

Bullock, B. J.

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Alarm or control thereof

Patent

active

D02797690

REFERENCES:
patent: D246635 (1977-12-01), Boldt et al.
patent: D249481 (1978-09-01), Conforte et al.
patent: 4099178 (1978-07-01), Ranney et al.
Honeywell, 9/1978, front of article, Smoke Detector in middle right side.
Hareware Age, 7/1978, p. 133, Smoke alarm, Model #SM870, located in lower right corner.

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