Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Temperature – humidity – atmospheric condition
Patent
1978-12-28
1980-10-14
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Temperature, humidity, atmospheric condition
D10 58, D99 25, D1004
Patent
active
D02573296
REFERENCES:
patent: D3909 (1870-03-01), Sherman
patent: D14091 (1883-07-01), Crear
patent: D75884 (1928-07-01), Wees
patent: D79413 (1929-09-01), Agrios
patent: D80873 (1930-04-01), Alessi
patent: D253041 (1979-10-01), Ellard
Holtje Nelson C.
Weiser Gerard J.
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