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Shigemitsu Kimura
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Wakayama, JP
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last 30 patents
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Patent Grant
Method of manufacturing seamless tube formed of titanium material
Patent number
4,991,419
Issue date
Feb 12, 1991
Sumitomo Metal Industries, Ltd.
Atsuhiko Kuroda
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...