Measuring – testing – or signalling instruments – Security or signal instrument or casing – Aural – i.e. – audible
Patent
1976-08-19
1978-06-13
Lucas, Susan J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Aural, i.e., audible
D1006
Patent
active
D02481529
REFERENCES:
patent: D199446 (1964-10-01), Stevenson
patent: D215976 (1969-11-01), Berns
Carolina Enterprises, Inc.
Kirschstein David B.
Lucas Susan J.
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