Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Electrical property
Patent
1997-11-19
1998-11-17
Davis, Antoine Duval
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Electrical property
1004
Patent
active
D04011724
REFERENCES:
patent: D332574 (1993-01-01), Chang
patent: D345704 (1994-04-01), Shirai
patent: D388346 (1997-12-01), Arnoux et al.
Davis Antoine Duval
Kyoritsu Electrical Instruments Works, Ltd.
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