Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1976-02-12
1977-03-01
Burke, Wallace R.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
D1005
Patent
active
D02435136
REFERENCES:
electronic Technician/Dealer, Aug. 1968, p. 82, intrusion alarm shown.
Sweets Architectural Catalog, vol. 12, 1972, Section 16.12Ae, p. 2, top of page.
Galvin Aaron A.
Keeler Francis R.
American District Telegraph Company
Burke Wallace R.
Nucker Christine M.
Weingarten Joseph
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