Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Volume – flow or rate
Patent
1996-07-15
1997-12-09
Davis, Antoine Duval
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Volume, flow or rate
1004
Patent
active
D03872947
REFERENCES:
patent: 3064888 (1962-11-01), Van De Mark
patent: 4768040 (1988-08-01), Pipkin
patent: 5442380 (1995-08-01), McCormick
patent: 5506876 (1996-04-01), Homer
Davis Antoine Duval
Lister John D.
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