Measuring – testing – or signalling instruments – Security or signal instrument or casing – Element or attachment
Patent
1979-12-03
1981-10-13
Lucas, Susan J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Element or attachment
D1005
Patent
active
D02612437
REFERENCES:
patent: D152132 (1948-12-01), Young
patent: D225905 (1973-01-01), Lincoln
patent: D248283 (1978-06-01), Kitts et al.
Popular Science, May-1978, p. 103, top left, water detector.
Allen Alton K.
Buttner Ronald A.
Mintz Richard P.
Datasonic, Inc.
Dresner Arthur
Lucas Susan J.
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