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J. Scott Martin
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Perry, OK, US
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last 30 patents
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Patent Grant
Drill pipe
Patent number
5,713,423
Issue date
Feb 3, 1998
The Charles Machine Works, Inc.
J. Scott Martin
E21 - EARTH DRILLING MINING
Information
Patent Grant
Digging chain
Patent number
5,533,939
Issue date
Jul 9, 1996
The Charles Machine Works, Inc.
J. Scott Martin
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Patent Grant
Digging tooth and teeth arrayed in combination with endless excavat...
Patent number
4,924,609
Issue date
May 15, 1990
The Charles Machine Works, Inc.
J. Scott Martin
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING