Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Element or attachment
Patent
1979-01-15
1980-09-30
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Element or attachment
D10 99, D1007
Patent
active
D02571331
REFERENCES:
patent: 1139188 (1915-05-01), Kane
patent: 3913400 (1975-10-01), Floren
patent: 3921449 (1975-11-01), Hauffe
patent: 4065020 (1977-12-01), Carson
patent: 4163503 (1979-08-01), McKinnon
Holtje Nelson C.
Wofford Wm. T.
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