Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Temperature – humidity – atmospheric condition
Patent
1987-02-26
1990-07-31
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Temperature, humidity, atmospheric condition
Patent
active
D03095797
REFERENCES:
patent: D93452 (1934-10-01), Butler
patent: D97818 (1935-12-01), Mitchell
patent: D140091 (1945-01-01), Weksler
patent: D141746 (1945-07-01), Weksler
patent: D254780 (1980-04-01), Mueller
patent: 345106 (1886-07-01), Brayton
patent: 3161058 (1964-12-01), Willinger et al.
patent: 4627741 (1986-12-01), Faller
patent: 4669892 (1987-06-01), Greenwood
Davis Antoine D.
Holtje Nelson C.
O'Meara William P.
Sun Company, Inc.
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