Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Temperature – humidity – atmospheric condition
Patent
1979-10-15
1981-11-10
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Temperature, humidity, atmospheric condition
D10 79, D1004
Patent
active
D02617366
REFERENCES:
patent: D248734 (1978-08-01), Husserl
patent: D254536 (1980-03-01), Davis
patent: 3520187 (1970-07-01), Petersen
patent: 3750471 (1973-08-01), Bremer
Gosline Scott P.
Stembridge William F.
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