Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Temperature – humidity – atmospheric condition
Patent
1993-07-30
1994-11-15
Douglas, Alan P.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Temperature, humidity, atmospheric condition
Patent
active
D03524736
REFERENCES:
patent: 45931 (1914-06-01), Gilbert
patent: 4665744 (1987-05-01), Smith
A Southern Season, Inc.
Davis Antoine D.
Douglas Alan P.
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