Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1984-03-09
1986-04-15
Bullock, B. J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
Patent
active
D02834073
REFERENCES:
patent: D204526 (1966-04-01), Storm, Jr.
patent: D247665 (1978-04-01), Larsen
patent: 3863076 (1975-01-01), Steele et al.
patent: 4238788 (1980-12-01), Rosauer et al.
Bullock B. J.
Gitlin Suzanne N.
Pittway Corporation
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