Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1978-09-01
1981-05-12
Stallard, W.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
D1005
Patent
active
D02591871
REFERENCES:
patent: D241322 (1976-09-01), Sparks et al.
Cega, Inc.
Stallard W.
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