David E. Slutz

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Worthington, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Twist drills having thermally stable diamond or CBN compacts tips
- Patent number 5,273,557
- Issue date Dec 28, 1993
- General Electric Company
- David B. Cerutti
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining pick
- Patent number 5,092,310
- Issue date Mar 3, 1992
- General Electric Company
- Robert C. Walen
- E21 - EARTH DRILLING MINING