Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1983-06-01
1985-12-17
Bullock, B. J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
Patent
active
D02817667
REFERENCES:
patent: D204939 (1966-05-01), Wyse
patent: 2810902 (1957-10-01), Crossley
patent: 3351762 (1967-11-01), Adkins et al.
patent: 3928843 (1975-12-01), Sprout et al.
The Silent Watchman Corp., 6/1980, front of page, Infralarm II in middle of page.
Denton Arthur M.
Mills Fred M.
Bullock B. J.
Gitlin Suzanne N.
Keane Monroe Corporation
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