Seibert S. Oaks

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Everett, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Grooved earthworking bit and method of enhancing the life thereof
- Patent number 4,194,791
- Issue date Mar 25, 1980
- Kennametal Inc.
- Robert H. Montgomery
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tool for cutting groove in hole
- Patent number 3,960,222
- Issue date Jun 1, 1976
- Kennametal Inc.
- Donald L. Leibee
- E21 - EARTH DRILLING MINING