Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1976-03-01
1977-09-06
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D1004
Patent
active
D02456761
REFERENCES:
patent: D111714 (1938-10-01), Rodanet
patent: D116277 (1939-08-01), Bechberger
patent: D132374 (1942-05-01), Daalder
patent: D194854 (1963-03-01), Davidson
Holtje Nelson C.
Oltman John H.
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