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Patents Grants
last 30 patents
Information
Patent Grant
Proportional flow control valve
Patent number
4,889,317
Issue date
Dec 26, 1989
Geoflow International Pty. Limited
Christopher G. Kelsey
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Valve and valve roller sealing
Patent number
4,858,887
Issue date
Aug 22, 1989
Geoflow International Pty. Limited
Christopher G. Kelsey
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Valve
Patent number
4,842,245
Issue date
Jun 27, 1989
Geoflow International Pty. Limited
Christopher G. Kelsey
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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last 30 patents
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