Joseph H. Mainhardt

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Huntington, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for working a hole
- Patent number 4,129,028
- Issue date Dec 12, 1978
- Grumman Aerospace Corporation
- Basil P. Leftheris
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR