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Doyle J. Crenshaw
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Booneville, AR, US
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last 30 patents
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Patent Grant
Welding blanket
Patent number
8,347,481
Issue date
Jan 8, 2013
Doyle J. Crenshaw
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patent Grant
Method for improving the operation of a pipeline by employing soap...
Patent number
6,802,909
Issue date
Oct 12, 2004
Doyle J. Crenshaw
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
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Patent Grant
Launcher for passing a pig into a pipeline
Patent number
6,769,152
Issue date
Aug 3, 2004
Parnell Consultants, Inc.
Doyle J. Crenshaw
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...