Measuring – testing – or signalling instruments – Security or signal instrument or casing – Aural – i.e. – audible
Patent
1997-07-14
1998-03-03
Jackson, Marcus A.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Aural, i.e., audible
1005
Patent
active
D03915140
REFERENCES:
patent: D114965 (1939-05-01), Rittenhouse
patent: D172021 (1954-04-01), Grohsgal
patent: D199446 (1964-10-01), Stevenson
patent: D350302 (1994-09-01), Dawson
patent: D380167 (1997-06-01), Ryan
Fred. M. Schildwachter & Sons, Inc.
Gerber Eliot S.
Jackson Marcus A.
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