Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Electrical property
Patent
1980-06-30
1983-08-30
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Electrical property
D1004
Patent
active
D02703378
REFERENCES:
patent: D223196 (1972-03-01), Andreaggi
patent: D246767 (1977-12-01), Needham
patent: D253227 (1979-10-01), Buck
Amprobe Inst. Test. Equip. Cat. 9/78, p. 6-Multimeter at top right.
Scientific Educational Products-Multimeter on front.
Akigawa Electronic Corporation
Holtje Nelson C.
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