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Leonard A. Fears
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Bixby, OK, US
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last 30 patents
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Patent Grant
Multi-layer plastic pipe and method and apparatus for extrusion the...
Patent number
5,518,036
Issue date
May 21, 1996
Phillips Petroleum Company
Jimmie G. DeMasters
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Method and apparatus for positioning a pipe
Patent number
5,431,866
Issue date
Jul 11, 1995
Phillips Petroleum Company
Jimmie G. DeMasters
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL