Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1975-09-02
1977-02-08
Burke, Wallace R.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
D1005
Patent
active
D02433214
REFERENCES:
patent: D215974 (1969-11-01), Berns
patent: D238154 (1975-12-01), Tipton et al.
Sweets Architechural Catalog Files, 1972, Section 16.12 PY, p. 3, smoke and fire alarms shown.
Burke Wallace R.
Nucker Christine M.
Statitrol Corporation
Wymore Max L.
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