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发明名称
摘要
申请公布号
JPS5290533(U)
申请公布日期
1977.07.06
申请号
JP19750177813U
申请日期
1975.12.29
申请人
发明人
分类号
B21D37/16;B21J1/06;B21J13/02;H05B6/40;(IPC1-7):B21D37/16;H05B5/00
主分类号
B21D37/16
代理机构
代理人
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地址
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