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发明名称
摘要
申请公布号
JPS5740287(B2)
申请公布日期
1982.08.26
申请号
JP19790171513
申请日期
1979.12.24
申请人
发明人
分类号
E01D19/10;E01D22/00;E04G3/28
主分类号
E01D19/10
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