Measuring – testing – or signalling instruments – Security or signal instrument or casing – Visual
Patent
1984-12-24
1987-01-27
Lucas, Susan J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Visual
D26 30
Patent
active
D02879484
REFERENCES:
patent: D63442 (1923-12-01), Stover
patent: D64530 (1924-04-01), Cannon
patent: D118312 (1939-12-01), Pope
patent: D180548 (1957-07-01), D'Addabbo
patent: 1586242 (1926-05-01), Duthie
patent: 2453421 (1948-11-01), Dyer
patent: 3085224 (1963-04-01), Becka
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