Measuring – testing – or signalling instruments – Security or signal instrument or casing – Visual
Patent
1978-06-28
1980-07-29
Lucas, Susan J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Visual
D26 35, D1006, D2606
Patent
active
D02561042
REFERENCES:
patent: D153151 (1949-03-01), Husson
patent: D236846 (1975-09-01), Bishop
patent: 2843728 (1958-07-01), Roth et al.
patent: 3885226 (1975-05-01), Lang et al.
Ferenc Robert A.
Gretta Jack E.
Fishman David S.
Lucas Susan J.
Whelen Engineering Company, Inc.
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