Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Regulator or control
Patent
1977-06-20
1980-01-29
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Regulator or control
D1004
Patent
active
D02540525
REFERENCES:
patent: D176657 (1956-01-01), Dreyfuss
patent: D189368 (1960-11-01), Baak
patent: D190050 (1961-04-01), Duncan
patent: D197352 (1964-01-01), Dreyfuss
patent: 2847539 (1958-08-01), Pounds
patent: 2901577 (1959-08-01), Drummond
patent: 3834618 (1974-09-01), Buckwalter
Hanson Henry L.
Holtje Nelson C.
Honeywell Inc.
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