Measuring – testing – or signalling instruments – Security or signal instrument or casing – Aural – i.e. – audible
Patent
1980-04-21
1982-10-05
Lucas, Susan J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Aural, i.e., audible
D1006
Patent
active
D02664070
REFERENCES:
patent: D184293 (1959-01-01), Schwartz
patent: D192098 (1962-01-01), Bautsch
patent: 1930504 (1933-10-01), Benjafield
Chaskin Jay L.
Lucas Susan J.
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