David Alexander McCloskey

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New South Wales, AU

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Patents Grantslast 30 patents

Information Patent Grant
Mine roof drill bit and cutting insert therefor
- Patent number 5,996,715
- Issue date Dec 7, 1999
- Sandvik Rock Tools, Inc.
- Kent Peay
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof drill bit and cutting insert therefor
- Patent number 5,829,540
- Issue date Nov 3, 1998
- Sandvik Rock Tools, Inc.
- Kent Peay
- E21 - EARTH DRILLING MINING