Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1984-10-12
1986-05-13
Bullock, B. J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
Patent
active
D02838060
REFERENCES:
patent: D236817 (1975-09-01), Sweany
patent: D242024 (1976-10-01), Wang
patent: D271598 (1983-11-01), Helein
patent: D279307 (1985-06-01), Murakami
patent: 3095556 (1963-06-01), Fuller
patent: 4012731 (1977-03-01), Solomon
patent: 4258359 (1981-03-01), McLamb
Bullock B. J.
Gitlin Suzanne N.
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