Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1984-03-09
1986-07-22
Bullock, B. J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
Patent
active
D02847485
REFERENCES:
patent: D204526 (1966-04-01), Storm, Jr.
patent: D216229 (1969-12-01), Hauser
patent: D247665 (1978-04-01), Larsen
patent: D249482 (1978-09-01), Conforti et al.
patent: 4037206 (1977-07-01), Dobrzanski et al.
Bullock B. J.
Gitlin Suzanne N.
Pittway Corporation
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