Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1984-04-13
1987-12-08
Bullock, B. J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
Patent
active
D02930889
REFERENCES:
patent: D198032 (1964-04-01), Leland
patent: D221555 (1971-08-01), Krolopp
patent: D263709 (1982-04-01), Ando
patent: D273786 (1984-05-01), Owerko
patent: D278905 (1985-05-01), Scheid et al.
patent: 2710345 (1955-06-01), Stephens
patent: 4057794 (1977-11-01), Grossfield
patent: 4491970 (1985-01-01), LaWhite et al.
Brown Wilbert C.
Tosto Roger J.
Bullock B. J.
Carten Francis N.
TIE Communications, Inc.
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