Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Regulator or control
Patent
1982-02-12
1984-05-22
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Regulator or control
Patent
active
D02739445
REFERENCES:
patent: D177151 (1956-03-01), Ray
patent: D185598 (1959-06-01), Dreyfuss
patent: D202441 (1965-09-01), Monson
patent: 2279305 (1942-04-01), Drake
Adams Harold P.
Blee Robert W.
Koeneman David F.
Holtje Nelson C.
Mark Controls Corporation
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