Measuring – testing – or signalling instruments – Security or signal instrument or casing – Visual
Patent
1978-04-03
1980-12-30
Lucas, Susan J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Visual
D1006
Patent
active
D02577208
REFERENCES:
patent: 2719506 (1955-10-01), Sequieira
patent: 4021020 (1977-05-01), Decker
Gifford Ernest I.
Lucas Susan J.
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