Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Patent
1984-01-06
1985-12-10
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Weight, force or density
D34 17, D10 90, D10 91, 177246
Patent
active
D02816768
REFERENCES:
patent: 446309 (1891-02-01), West
patent: 2560943 (1951-07-01), Goldberger
patent: 2673729 (1954-03-01), Murray
patent: 2726913 (1955-12-01), Freeman
patent: 2873106 (1959-02-01), Fassbinder
patent: 2903219 (1959-09-01), Ingham
patent: 3074497 (1963-01-01), Hawbaker
patent: 3726353 (1973-04-01), Christensen
patent: 4359099 (1982-11-01), Henslin
Holtje Nelson C.
Nordic Forge, Inc.
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