Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Temperature – humidity – atmospheric condition
Patent
1975-09-08
1977-05-17
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Temperature, humidity, atmospheric condition
D1004
Patent
active
D02443600
REFERENCES:
patent: D236253 (1975-08-01), Parker
patent: 2313810 (1943-03-01), Dalton
patent: 2787230 (1957-04-01), Luce
patent: 3194669 (1965-07-01), Koch
patent: 3465590 (1969-09-01), Kluth
patent: 3597976 (1971-08-01), Fryar
patent: 3898354 (1975-08-01), Parker
Holtje Nelson C.
Woodard Harold R.
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