Measuring – testing – or signalling instruments – Security or signal instrument or casing – Visual
Patent
1988-06-23
1991-02-05
Lucas, Susan J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Visual
D10114, D26 24, D26 68
Patent
active
D03143546
REFERENCES:
patent: D33074 (1900-08-01), Verbeek
patent: D70236 (1926-05-01), Meden
patent: D185376 (1959-06-01), Anderson
patent: D223394 (1972-04-01), Anderson
patent: 1986732 (1935-01-01), Lane
patent: 2362131 (1944-11-01), Haggart, Jr.
patent: 3089120 (1963-05-01), Aiken
patent: 3610916 (1971-10-01), Meehan
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