Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Electrical property
Patent
1988-09-28
1991-02-12
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Electrical property
Patent
active
D03145239
REFERENCES:
patent: D256896 (1980-09-01), Kuramoto
patent: D261488 (1981-10-01), Lindsay et al.
patent: D280299 (1985-08-01), Nelson
patent: D282532 (1986-02-01), Brown
patent: 4259635 (1981-03-01), Triplett
Simpson Professional Test Equipment, Hand Held Digit Multimeter, 9/83, back cover.
Extech Instruments, Pocket Digital Multimeter, 1987, p. 4.
Fordham, Multimeter RC-555, 1987, p. 47.
Davis Antoine D.
Hioki Denki Kabushiki Kaisha
Holtje Nelson C.
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