Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Electrical property
Patent
1988-11-14
1991-04-23
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Electrical property
Patent
active
D03163776
REFERENCES:
patent: D246291 (1977-11-01), Krolopp et al.
patent: D246767 (1977-12-01), Needham
patent: D248929 (1978-08-01), Connolly
patent: D264825 (1982-06-01), Izaki
patent: 4782287 (1988-11-01), Marx
Davis Antoine D.
Gernstein Terry M.
Holtje Nelson C.
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