Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Volume – flow or rate
Patent
1997-03-05
1998-07-14
Davis, Antoine Duval
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Volume, flow or rate
1004
Patent
active
D03960145
REFERENCES:
patent: 3958565 (1976-05-01), Wright
patent: 5246010 (1993-09-01), Gazzara et al.
patent: 5562101 (1996-10-01), Hankinson et al.
Davis Antoine Duval
Rainer Norman B.
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