Rene F. DeFries

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Winnipeg, CA

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Patents Grantslast 30 patents

Information Patent Grant
Bit for forming holes in composite materials
- Patent number 5,000,630
- Issue date Mar 19, 1991
- The Boeing Company
- A. Douglass Riley
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Combination drilling and dressing bit
- Patent number 4,720,218
- Issue date Jan 19, 1988
- The Boeing Company
- Rene F. DeFries
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR