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发明名称
摘要
申请公布号
JPH0739017(B2)
申请公布日期
1995.05.01
申请号
JP19900413875
申请日期
1990.12.26
申请人
发明人
分类号
B21J1/06;B21J3/00;B21J5/00;(IPC1-7):B21J5/00
主分类号
B21J1/06
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代理人
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