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发明名称
摘要
申请公布号
JPS5147267(B2)
申请公布日期
1976.12.14
申请号
JP19720010534
申请日期
1972.01.31
申请人
发明人
分类号
E04G21/12;E04C5/18
主分类号
E04G21/12
代理机构
代理人
主权项
地址
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