Measuring – testing – or signalling instruments – Security or signal instrument or casing – Visual
Patent
1985-07-08
1987-12-29
Lucas, Susan J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Visual
Patent
active
D02934230
REFERENCES:
patent: 2932004 (1960-04-01), Zurcher
patent: 3117302 (1964-01-01), Cardarelli et al.
patent: 4288784 (1981-09-01), Fusco
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