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Kaoru Kikubu
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Sakai, JA
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last 30 patents
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Patent Grant
Method of simultaneously drawing a number of wire members
Patent number
4,044,447
Issue date
Aug 30, 1977
Nippon Seisen, Co., Ltd.
Koichi Hamada
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...