Ronald B. Anderson

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Minneapolis, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Rod break-out and make-up tool
- Patent number 4,309,922
- Issue date Jan 12, 1982
- Longyear Company
- Gary H. Beckley
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Pivoting foot clamp and mounting frame
- Patent number 4,297,771
- Issue date Nov 3, 1981
- Longyear Company
- Ronald B. Anderson
- E21 - EARTH DRILLING MINING
Information Patent Grant
High-low speed rotary drive mechanism
- Patent number 4,266,444
- Issue date May 12, 1981
- Longyear Company
- Ronald B. Anderson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Dry hole wire core barrel apparatus
- Patent number 3,930,679
- Issue date Jan 6, 1976
- Longyear Company
- Ronald B. Anderson
- E21 - EARTH DRILLING MINING