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发明名称
摘要
申请公布号
JPS5413086(U)
申请公布日期
1979.01.27
申请号
JP19770086725U
申请日期
1977.06.30
申请人
发明人
分类号
B21D28/34;B21D28/26;B26F1/14;B26F1/32;(IPC1-7):B26F1/14
主分类号
B21D28/34
代理机构
代理人
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