Measuring – testing – or signalling instruments – Security or signal instrument or casing – Aural – i.e. – audible
Patent
1993-03-10
1994-02-08
Burke, Wallace R.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Aural, i.e., audible
Patent
active
D03440370
REFERENCES:
patent: D43222 (1912-11-01), Zansing
patent: D301513 (1989-06-01), Wright
patent: 303139 (1884-08-01), Farnham
patent: 587795 (1897-08-01), Crosby et al.
patent: 1094006 (1914-04-01), O'Reilly
patent: 1930504 (1933-10-01), Benjafield
patent: 2739065 (1956-03-01), Hugin
Armament Systems and Procedures, Inc.
Burke Wallace R.
Curfiss Robert C.
Jackson Marcus
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