Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Temperature – humidity – atmospheric condition
Patent
1987-09-11
1990-07-31
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Temperature, humidity, atmospheric condition
Patent
active
D03095827
REFERENCES:
patent: D156094 (1949-11-01), Hallward
patent: D279869 (1985-07-01), Tanaka
patent: D288536 (1987-03-01), Tanaka
patent: D297217 (1988-08-01), Wolff
patent: 3709039 (1973-01-01), Preiser et al.
patent: 4737707 (1988-04-01), Mori et al.
patent: 4868491 (1989-09-01), Black
501 Tanaka Manufacturing Company Limited
Davis Antoine D.
Holtje Nelson C.
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