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发明名称
摘要
申请公布号
JPS5416939(B2)
申请公布日期
1979.06.26
申请号
JP19740093800
申请日期
1974.08.15
申请人
发明人
分类号
B21J9/02;B21J9/00;B21J13/04;B30B15/04;E02D27/44;F16M7/00;F16M9/00
主分类号
B21J9/02
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代理人
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