Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Volume – flow or rate
Patent
1990-12-04
1993-11-02
Douglas, Alan P.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Volume, flow or rate
D10 99
Patent
active
D03408760
REFERENCES:
patent: D133043 (1942-07-01), Powell
patent: D301018 (1989-05-01), Hestich
patent: 2619838 (1952-12-01), Butterworth
patent: 2654247 (1953-10-01), Netwon
patent: 3425275 (1969-02-01), Russell, Jr. et al.
patent: 4485672 (1984-12-01), Rosaen
patent: 4582220 (1986-04-01), Batting
Form C260, by Neptune lp-gas liquid meters.
Dorn Tammie J.
Shipman Daryl C.
Davis Antoine D.
Douglas Alan P.
Schlumberger Industries Inc.
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