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公开(公告)号:JP4058553B2
公开(公告)日:2008-03-12
申请号:JP2001340323
申请日:2001-11-06
Applicant: 株式会社昭和丸筒
Inventor: 敏樹 静野
IPC: C03B37/12 , G02B6/00 , B65H75/02 , B65H75/14 , B65H75/28