John P. Kocab

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Cleveland Heights, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Compact roller cutter
- Patent number 5,577,565
- Issue date Nov 26, 1996
- Boretec, Inc.
- John P. Kocab
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roller cutter mount for tunneling machine
- Patent number 5,421,422
- Issue date Jun 6, 1995
- Clayton H. Crane
- E21 - EARTH DRILLING MINING