Hayashi Precision Co. Ltd

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Tokyo, JP

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Rolling die and method for forming thread or worm and spline having...
- Patent number 7,392,680
- Issue date Jul 1, 2008
- Toyota Jidosha Kabushiki Kaisha
- Yasuo Kinoshita
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

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