Smoke detector

Details Smoke detector Smoke detector

1990-08-07

1992-10-13

Burke, Wallace R.

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Alarm or control thereof

D11124

Patent

active

D03301729

REFERENCES:
patent: D225187 (1972-11-01), Escalante
patent: D247163 (1978-02-01), White
patent: 2335219 (1950-12-01), Margolis et al.
patent: 2922330 (1960-01-01), Chuy
patent: 4525703 (1985-06-01), Bellino
patent: 4611200 (1986-09-01), Stilwell
patent: 4623878 (1986-11-01), Schoenwetter

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