Daniel R. Webb

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Santa Ana, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for tunneling upwardly
- Patent number 4,114,698
- Issue date Sep 19, 1978
- Smith International, Inc.
- Daniel R. Webb
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drill stem for drilling upwardly
- Patent number 4,102,411
- Issue date Jul 25, 1978
- Smith International, Inc.
- Daniel R. Webb
- E21 - EARTH DRILLING MINING