Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Electrical property
Patent
1982-07-09
1985-02-19
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Electrical property
D10 46, D10 75
Patent
active
D02776502
REFERENCES:
patent: D140458 (1945-02-01), Tuomey
patent: D205138 (1966-06-01), Darrah
patent: D208549 (1967-09-01), Hoss
patent: D228467 (1973-09-01), Moskowitz
patent: D241823 (1976-10-01), Averitt
patent: D242232 (1976-11-01), Martin
patent: 2644921 (1953-07-01), Lewkowski
patent: 3535621 (1970-10-01), Ptomey
patent: 3588684 (1971-06-01), Ridgeway
Materials Evaluation-1/77-p. 66-Tester at top-right.
Frater Grover A.
Holtje Nelson C.
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