Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1986-07-15
1990-01-16
Lucas, Susan J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
Patent
active
D03055086
REFERENCES:
patent: D236817 (1975-09-01), Sweany
patent: D259255 (1981-05-01), Menzies et al.
patent: D264564 (1982-05-01), Jaretsky
patent: 3696380 (1972-10-01), Murphy
patent: 3706090 (1972-12-01), Callaghan
patent: 4062314 (1977-12-01), Allen
patent: 4271338 (1981-06-01), Rakocy
patent: 4277781 (1981-07-01), Hunyadi
patent: 4292629 (1981-09-01), Kerr et al.
patent: 4376276 (1983-03-01), Barta
patent: 4381504 (1983-04-01), Bitko
Lucas Susan J.
Tupman W. C.
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