Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1998-04-07
1999-07-06
Davis, Antoine Duval
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
1004
Patent
active
D04118081
REFERENCES:
patent: 2114936 (1938-04-01), Pilnick
Davis Antoine Duval
Lee Valley Tools Ltd.
Pratt John S.
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