Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1990-04-06
1992-06-02
Burke, Wallace R.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
Patent
active
D03266192
REFERENCES:
patent: D238733 (1976-02-01), Goldsamt
patent: D276599 (1984-12-01), Segan et al.
patent: D278830 (1985-05-01), Funato et al.
patent: D282463 (1986-02-01), Barr et al.
patent: D283406 (1986-04-01), Green, Jr.
patent: D305211 (1989-12-01), Horn
patent: D310791 (1990-09-01), Farrell et al.
patent: D312221 (1990-11-01), Steele et al.
Burke Wallace R.
Jackson Marcus
Napco Security Systems, Inc.
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