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Toshihiro Nagano
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Shizuoka, JP
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last 30 patents
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Apparatus for manufacturing extruded structural profiles from alumi...
Patent number
4,117,703
Issue date
Oct 3, 1978
Riken Keikinzoku Kogyo Kabushiki Kaisha
Toshiro Takahashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...