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发明名称
摘要
申请公布号
JPS5243332(B2)
申请公布日期
1977.10.29
申请号
JP19710075173
申请日期
1971.09.27
申请人
发明人
分类号
F16B4/00;B21D39/03;E04C2/42;(IPC1-7):E04C2/42
主分类号
F16B4/00
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