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发明名称
摘要
申请公布号
JP4391778(B2)
申请公布日期
2009.12.24
申请号
JP20030290833
申请日期
2003.08.08
申请人
发明人
分类号
B21D22/20;B21D22/28;B30B13/00
主分类号
B21D22/20
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代理人
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地址
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