Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Chemical
Patent
1983-08-08
1986-03-11
Kemper, Catherine E.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Chemical
D10111, D26 49
Patent
active
D02829150
REFERENCES:
patent: D185543 (1959-06-01), Frank et al.
patent: D247821 (1978-05-01), Biersch et al.
patent: D252170 (1979-06-01), Simmons
patent: D252617 (1979-08-01), McCloskey
patent: D256567 (1980-08-01), Voss et al.
patent: D261871 (1981-11-01), Akers, Jr.
patent: 2680834 (1954-06-01), Burns et al.
patent: 3302102 (1967-01-01), Lace
Crowe John H.
Kemper Catherine E.
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