Charles E. Brettell

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North Pomfret, VT, US

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Patents Grantslast 30 patents

Information Patent Grant
Expanable mandrel
- Patent number 7,748,718
- Issue date Jul 6, 2010
- The Gleason Works
- Charles E. Brettell
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
EXPANDABLE MANDREL
- Publication number 20060284383
- Publication date Dec 21, 2006
- Charles E. Brettell
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR