Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Element or attachment
Patent
1976-03-29
1977-07-19
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Element or attachment
D1007
Patent
active
D02450739
REFERENCES:
patent: D67402 (1925-05-01), Heath
patent: D214851 (1969-08-01), Mimeur
patent: 3136294 (1964-06-01), Arnold
Design News, 3/21/62, p. 43, turns-counting dial at lower-right, No. 312.
Holtje Nelson C.
Parker Robert L.
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