Measuring – testing – or signalling instruments – Security or signal instrument or casing – Visual
Patent
1986-02-12
1989-06-27
Lucas, Susan J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Visual
D13 12
Patent
active
D03018440
REFERENCES:
patent: D218439 (1970-08-01), Horowitz et al.
patent: D236445 (1975-08-01), Danz et al.
patent: D273573 (1984-04-01), Aulicino
Chen Kent
Nielson Richard H.
Schwarz Frank
Lucas Susan J.
National Industrial Security Corp.
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