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发明名称
摘要
申请公布号
JPS5640912(Y2)
申请公布日期
1981.09.25
申请号
JP19760127783U
申请日期
1976.09.22
申请人
发明人
分类号
E02D29/02;E02D31/00;(IPC1-7):E02D29/02
主分类号
E02D29/02
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