George Coleman

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Bristol, TN, US

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Patents Grantslast 30 patents

Information Patent Grant
Mining system and method featuring a bread loaf shaped borehole
- Patent number 6,612,655
- Issue date Sep 2, 2003
- Amvest Systems Inc.
- Jeffrey J. Schwoebel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Swing tail assembly for miner
- Patent number 5,779,321
- Issue date Jul 14, 1998
- Arch Technology Corporation
- George E. Coleman
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Mining system and method featuring a bread loaf shaped borehole
- Publication number 20020113484
- Publication date Aug 22, 2002
- AMVEST SYSTEMS INC.
- Jeffrey J. Schwoebel
- E21 - EARTH DRILLING MINING