Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1991-06-14
1993-11-23
Douglas, Alan P.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
Patent
active
D03415457
REFERENCES:
patent: D182165 (1958-02-01), Caruso
patent: D198959 (1964-08-01), Fulvio
patent: D203622 (1966-02-01), Quenot
patent: D286861 (1986-11-01), Hollinger
patent: 2055281 (1936-09-01), Dulczewski
Davis Antoine D.
Douglas Alan P.
Gernstein Terry M.
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