Takuma Maeda

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Ube, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for forming a billet for extrusion
- Patent number 4,173,061
- Issue date Nov 6, 1979
- Ube Industries, Ltd.
- Kazushige Shimizu
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...