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发明名称
摘要
申请公布号
JPS55109721(U)
申请公布日期
1980.08.01
申请号
JP19790009182U
申请日期
1979.01.26
申请人
发明人
分类号
E02D5/28;E01D19/02;E04B1/58;E04C3/32;(IPC1-7):E04C3/32
主分类号
E02D5/28
代理机构
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