Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1992-05-06
1994-01-18
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
Patent
active
D03433633
REFERENCES:
patent: D205413 (1966-08-01), Wullschleger
patent: D330682 (1992-11-01), Butler et al.
patent: 778508 (1904-12-01), Sandbrook
patent: 3009254 (1961-11-01), Youngs
patent: 5020232 (1991-06-01), Whiteford
Davis Antoine D.
Holtje Nelson C.
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