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发明名称
摘要
申请公布号
JP3508948(B2)
申请公布日期
2004.03.22
申请号
JP19940177999
申请日期
1994.07.29
申请人
发明人
分类号
B21D22/26;B21D22/30;B21D51/16;B21K1/16;(IPC1-7):B21D51/16
主分类号
B21D22/26
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