Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Patent
1977-07-06
1979-12-18
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Weight, force or density
D1004
Patent
active
D02536919
REFERENCES:
patent: D200730 (1965-03-01), Faul
patent: D223404 (1972-04-01), Schwartz
Bljumshtein Zigmund G.
Bychkin Lev A.
Ivanshin Nikolai S.
Holtje Nelson C.
Jacobson, Jr. Harvey B.
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