Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Patent
1977-02-04
1978-10-31
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Weight, force or density
D10 46, D10 87, D10 89, D10 90, D1004
Patent
active
D02500981
REFERENCES:
patent: 7562 (1850-08-01), Houston
patent: D74456 (1928-02-01), Smith
patent: 3960226 (1976-06-01), Wood
Holtje Nelson C.
Pastoriza Ralph B.
W. C. Dillon and Company, Inc.
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