Measuring – testing – or signalling instruments – Security or signal instrument or casing – Visual
Patent
1982-11-12
1985-07-02
Bullock, B. J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Visual
Patent
active
D02794608
REFERENCES:
patent: D253637 (1979-12-01), Wellbourne
patent: 3235214 (1966-02-01), Sprung
patent: 3917231 (1975-11-01), Fink
patent: 4137662 (1979-02-01), Baumer
Bullock B. J.
Gitlin Suzanne N.
York Michael W.
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