Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1979-12-07
1981-11-03
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D1004
Patent
active
D02616254
REFERENCES:
patent: 29767 (1860-08-01), Chisholm
patent: 346519 (1886-08-01), Tybjerg
patent: 1893925 (1933-01-01), Alessi
patent: 2412901 (1946-12-01), McCoshen
patent: 2551997 (1951-05-01), Cody
patent: 2822618 (1958-02-01), Wendell
patent: 4208804 (1980-06-01), Lundin
Holtje Nelson C.
Lewis Jon M.
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