Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1978-04-04
1981-04-21
Stallard, W.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
D1005
Patent
active
D02589435
REFERENCES:
patent: D240120 (1976-06-01), Pasquarette
patent: D246635 (1977-12-01), Boldt et al.
patent: D246958 (1978-01-01), Rakocy et al.
patent: D249481 (1978-09-01), Conforti et al.
Electronic Security Systems, Inc.
Stallard W.
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