Jack H. Keller

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Cullman, AL, US

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Patents Grantslast 30 patents

Information Patent Grant
Pipe cutting apparatus and method
- Patent number 4,222,795
- Issue date Sep 16, 1980
- Chicago Bridge & Iron Company
- Harold B. Hoaglin
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus and method for cutting and beveling pipe ends
- Patent number 4,219,370
- Issue date Aug 26, 1980
- Chicago Bridge & Iron Company
- Harold B. Hoaglin
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR