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发明名称
摘要
申请公布号
JPS5238634(B2)
申请公布日期
1977.09.30
申请号
JP19730057184
申请日期
1973.05.24
申请人
发明人
分类号
B26F1/14;B21D28/34;B21D37/10
主分类号
B26F1/14
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代理人
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地址
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