Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Electrical property
Patent
1989-04-14
1991-02-26
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Electrical property
Patent
active
D03149269
REFERENCES:
patent: D208578 (1967-09-01), Puljer
patent: D249658 (1978-09-01), Fields
patent: D280299 (1985-08-01), Nelson
patent: 3792205 (1974-02-01), O'Dea
Telephony, 7/1987, p. 72, Testers/Model OTP610 and Model OTP620.
Hioki, 11/83, p. 14, 3207 Digital Pocket Hi Tester.
Davis Antoinc D.
Fleck Harry
Harris Corporation
Holtje Nelson C.
Krawczyk Chuck
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