Richard H. Mundell

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Rijswijk, NL

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Patents Grantslast 30 patents

Information Patent Grant
Peristaltic down-hole drilling motor
- Patent number 4,576,242
- Issue date Mar 18, 1986
- Shell Oil Company
- Richard H. Mundell
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...