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James M. Weldon
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Austin, TX, US
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last 30 patents
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Patent Grant
Electromagnetic drilling apparatus
Patent number
5,018,590
Issue date
May 28, 1991
Parker Kinetic Designs, Inc.
James M. Weldon
E21 - EARTH DRILLING MINING
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Patent Grant
Electromagnetic drilling apparatus
Patent number
4,899,834
Issue date
Feb 13, 1990
Parker Kinetic Designs, Inc.
James M. Weldon
E21 - EARTH DRILLING MINING
Information
Patent Grant
Electromagnetic drilling apparatus and method
Patent number
4,722,402
Issue date
Feb 2, 1988
James M. Weldon
E21 - EARTH DRILLING MINING