Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1989-05-30
1991-09-17
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
Patent
active
D03199860
REFERENCES:
patent: D255104 (1980-05-01), Haidek
patent: D302251 (1989-07-01), Dudley
patent: 1654164 (1927-12-01), Eldridge
patent: 3808692 (1974-05-01), Gartner
patent: 3824695 (1974-07-01), McClay, Jr.
Davis Antoine D.
Holtje Nelson C.
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