Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1997-10-31
1998-09-08
Davis, Antoine Duval
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
1004
Patent
active
D03979482
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patent: 4663856 (1987-05-01), Hall et al.
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