Combined house address display unit and emergency signal light

Details Combined house address display unit and emergency signal light Combined house address display unit and emergency signal light

1990-06-21

1992-07-14

Burke, Wallace R.

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Visual

D20 17

Patent

active

D03278573

REFERENCES:
patent: D37799 (1906-01-01), Dawes
patent: D76271 (1928-09-01), Jeeter
patent: D178600 (1956-08-01), Gibson
patent: D254298 (1980-02-01), Sexton et al.
patent: D289184 (1987-04-01), Rutter
patent: D290377 (1987-06-01), Wood et al.
patent: D293423 (1987-12-01), Portillo
patent: D296087 (1988-06-01), Luck
patent: D296532 (1988-07-01), Kamensky
patent: D299506 (1989-01-01), Jensen

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