Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1998-11-30
1999-11-09
Davis, Antoine Duval
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
1004
Patent
active
D04162102
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patent: 357771 (1887-02-01), Janssen et al.
patent: 373929 (1887-11-01), Gillette
patent: D398252 (1998-09-01), Hagen et al.
patent: 503050 (1893-08-01), Lantz
patent: 3456353 (1969-07-01), Iams
patent: 3623232 (1971-11-01), Mahlstadt
patent: 5239762 (1993-08-01), Grizzell
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