Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1978-09-26
1980-10-07
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D1007
Patent
active
D02572370
REFERENCES:
patent: D182743 (1958-05-01), Rodman
patent: D220072 (1971-03-01), Hoff
patent: D230883 (1974-03-01), Brigham
patent: D236092 (1975-07-01), Mackowski
patent: 1240740 (1917-09-01), Levett
Skin Diver-4/71-p. 16-Compass at upper left.
Aqua Meter Instrument Corp.
Holtje Nelson C.
Relson Morris
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