Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1976-04-26
1977-06-07
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D1004
Patent
active
D02445867
REFERENCES:
patent: D152822 (1949-02-01), Overshiner
patent: D232659 (1974-09-01), Cameron
patent: 1685109 (1928-09-01), Weber
patent: 3046670 (1962-07-01), Wydra
American Shoemaking - Apr. 5, 1922 - p. 7, "U.S.M.C." Gauges.
Champion Spark Plug Company
Holtje Nelson C.
Owen Allen
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