Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1990-06-07
1993-03-09
Douglas, Alan P.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D10 72
Patent
active
D03337944
REFERENCES:
patent: D203411 (1966-01-01), Quenot
patent: D203622 (1966-02-01), Quenot
patent: D205467 (1966-08-01), Quenot
patent: D314156 (1991-01-01), Doyle
patent: 692756 (1902-02-01), Baldwin
patent: 4567436 (1986-01-01), Koch
patent: 4715007 (1987-12-01), Fujita et al.
Davis Antoine
Douglas Alan P.
Kett Electric Laboratory
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