Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Electrical property
Patent
1978-10-16
1980-09-23
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Electrical property
D1004
Patent
active
D02570149
REFERENCES:
patent: D239764 (1976-05-01), Freed
patent: 2290760 (1942-07-01), Mehaffie
patent: 2458628 (1949-01-01), Okun
patent: 2479186 (1949-08-01), Simkins
patent: 2524841 (1950-10-01), Simkins
patent: 2536577 (1951-01-01), Simmons
patent: 2561151 (1951-07-01), Stoffel
patent: 2575279 (1951-11-01), Linton
patent: 2956229 (1960-10-01), Henel
Cressman Robert C.
Stefani Joseph P.
General Electric Company
Holtje Nelson C.
Rochford P. E.
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