Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1978-12-28
1980-10-14
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D1004
Patent
active
D02573300
REFERENCES:
patent: 1644456 (1927-10-01), Winter
patent: 2624953 (1953-01-01), Newcomb
patent: 2906031 (1959-09-01), Rice
patent: 3303569 (1967-02-01), Wyatt
patent: 3545091 (1970-12-01), Sebastiani
patent: 3820249 (1974-06-01), Stone
patent: 4168578 (1979-09-01), VanderWerf
Holtje Nelson C.
Markva Neil F.
Vy-Dawn, Inc.
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