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Alan Sprain
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Houston, TX, US
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last 30 patents
Information
Patent Grant
Seismic signal coupling device and method
Patent number
6,262,945
Issue date
Jul 17, 2001
Syntron, Inc.
Michael Maples
G01 - MEASURING TESTING
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Patent Grant
Magnetic drive subassembly in a depth control device
Patent number
6,031,789
Issue date
Feb 29, 2000
Input/Output, Inc.
Keith Broussard
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Patent Grant
Rechargeable battery pack
Patent number
5,949,214
Issue date
Sep 7, 1999
Input/Output, Inc.
Keith Broussard
G01 - MEASURING TESTING