Measuring – testing – or signalling instruments – Security or signal instrument or casing – Aural – i.e. – audible
Patent
1994-09-14
1996-07-02
Jackson, Marcus A.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Aural, i.e., audible
Patent
active
D03713130
REFERENCES:
patent: D133738 (1942-09-01), Katy
patent: D331720 (1992-12-01), Shyan
patent: D338167 (1993-08-01), Huang
patent: D354747 (1995-01-01), Huang
Baxley Charles E.
Jackson Marcus A.
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