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发明名称
摘要
申请公布号
JPS5096271(U)
申请公布日期
1975.08.12
申请号
JP19740005587U
申请日期
1974.01.07
申请人
发明人
分类号
B21D37/18;B30B15/04;(IPC1-7):B30B15/04
主分类号
B21D37/18
代理机构
代理人
主权项
地址
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