Door chime housing

Details Door chime housing Door chime housing

1984-06-01

1986-06-10

Bullock, B. J.

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Aural, i.e., audible

Patent

active

D02841720

REFERENCES:
patent: D235722 (1975-07-01), Rettick
patent: D250638 (1978-12-01), Donnelly
patent: D250639 (1978-12-01), Donnelly
patent: D255856 (1980-07-01), Higson
patent: D264196 (1982-05-01), Doggart
Washington Post, Mar., 1972, p. B11, Door Chime-"The Colonial" #56, located on left side, 2nd from bottom.

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