Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Chemical
Patent
1982-02-16
1984-08-21
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Chemical
Patent
active
D02751852
REFERENCES:
patent: D173999 (1955-02-01), Reynolds
patent: D215493 (1969-09-01), Burridge
patent: D265634 (1982-08-01), Buck
patent: 3603155 (1971-09-01), Morris
Design News-10/23/78 p. 51-Exhaust Gas Analyzer Gauge at top of center-right.
Holtje Nelson C.
Sun Electric Corporation
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