Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Electrical property
Patent
1979-02-21
1980-09-16
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Electrical property
D1004
Patent
active
D02568969
REFERENCES:
patent: D223196 (1977-03-01), Andreaggi
patent: D237365 (1975-10-01), Vachtel
Electronic Technician/Dealer-4/75 p. 15, Volt-Ohm-Meter.
Holtje Nelson C.
Kelman Kurt
Kyoritsu Electrical Instrument Works, Ltd.
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