Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Volume – flow or rate
Patent
1991-12-10
1993-06-08
Douglas, Alan P.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Volume, flow or rate
Patent
active
D03362582
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patent: 4593562 (1986-06-01), Carte et al.
patent: 4779459 (1988-10-01), De Rego
Product Literature of Schlumberger Industries, Inc. entitled "Gallus 2000".
Braun Stephen
Payne, Jr. C. Lee
Wilson Wendell G.
Davis Antoine D.
Douglas Alan P.
Gaudier Dale V.
Schlumberger Industries Inc.
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