Title:
【発明の名称】湾曲した異形断面らせん条材の製造方法及び装置
Document Type and Number:
Japanese Patent JP2816000
Kind Code:
B2
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Inventors:
Uki Shigeki
Kanji Nakama
Kanji Nakama
Application Number:
JP22467290A
Publication Date:
October 27, 1998
Filing Date:
August 27, 1990
Export Citation:
Assignee:
Dai-ichi Kogyo Kogyo Co., Ltd.
International Classes:
B21D11/14; B21D47/01; (IPC1-7): B21D11/14
Domestic Patent References:
| JP63188427A | ||||
| JP6343727A |
Attorney, Agent or Firm:
Kyozo Norimatsu