Hidenori Shitamoto

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Chiyoda-ku, JP

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Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCING WELDED STEEL PIPE AND WELDED STEEL PIPE
- Publication number 20140202576
- Publication date Jul 24, 2014
- NIPPON SEEL & SUMITOMO METAL CORPORATION
- Hidenori Shitamoto
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...