Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Patent
1985-10-02
1987-02-10
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Weight, force or density
D10 46
Patent
active
D02881802
REFERENCES:
patent: 1942982 (1934-01-01), Schneider
patent: 2117985 (1938-05-01), Ridenour
patent: 2916913 (1959-12-01), Stevenson
patent: 4332160 (1982-06-01), Baragar
Holtje Nelson C.
Linton Thomas D.
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