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发明名称
摘要
申请公布号
JPS4738043(U)
申请公布日期
1972.12.27
申请号
JP19710045789U
申请日期
1971.06.03
申请人
发明人
分类号
B21H7/08;B21H7/00;(IPC1-7):B21H7/00
主分类号
B21H7/08
代理机构
代理人
主权项
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