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发明名称
摘要
申请公布号
JPS5419872(B2)
申请公布日期
1979.07.18
申请号
JP19740031951
申请日期
1974.03.19
申请人
发明人
分类号
B21B17/08;B21B19/06;B21B37/78
主分类号
B21B17/08
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代理人
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地址
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