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发明名称
摘要
申请公布号
JPS5393537(U)
申请公布日期
1978.07.31
申请号
JP19760176738U
申请日期
1976.12.28
申请人
发明人
分类号
B21D28/34;B21D17/02;B21D37/00;B21D37/08;B21D51/12;(IPC1-7):B21D51/12
主分类号
B21D28/34
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代理人
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