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David C. Card
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New Brighton, MN, US
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last 30 patents
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Patent Grant
Pipe base well screen and system for joining a plurality of well sc...
Patent number
RE32642
Issue date
Apr 12, 1988
Signal Environmental Systems, Inc.
Harry J. Boudreaux
166 - Wells
Information
Patent Grant
Pipe base well screen and system for joining a plurality of well sc...
Patent number
4,509,600
Issue date
Apr 9, 1985
UOP Inc.
Harry J. Boudreaux
E21 - EARTH DRILLING MINING
Information
Patent Grant
Device for assembling jacketed lengths of pipe base well screens
Patent number
4,506,730
Issue date
Mar 26, 1985
UOP Inc.
Chris D. McCollin
E21 - EARTH DRILLING MINING