Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1977-04-21
1979-03-20
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D1004
Patent
active
D02513650
REFERENCES:
patent: D192698 (1962-05-01), Curello
patent: 459519 (1891-09-01), Collins
patent: 953806 (1910-04-01), Tivy
Labitems-Flyer-1/54-p. 3-Tubing Gauge at top.
American Shoemaking-4/5/22-p. 7-Sorters Gauge at top left.
Holtje Nelson C.
Van Ophem Remy J.
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