Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1979-03-12
1980-12-23
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
33384, D1004
Patent
active
D02576716
REFERENCES:
patent: D229225 (1973-11-01), Covey
patent: D244837 (1977-06-01), Thingstad
patent: 565098 (1896-08-01), Traut
patent: 926661 (1909-06-01), Leiby
patent: 1794254 (1931-02-01), Sherwood
patent: 2512654 (1950-06-01), Kennedy
patent: 2551524 (1951-05-01), Bullivant
Holtje Nelson C.
Pugh Martha G.
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