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发明名称
摘要
申请公布号
JPS4841517(A)
申请公布日期
1973.06.18
申请号
JP19710076006
申请日期
1971.09.29
申请人
发明人
分类号
E04C5/04;E04C2/06;E04C5/06;(IPC1-7):E04C2/06
主分类号
E04C5/04
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代理人
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