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发明名称
摘要
申请公布号
JPS56153550(U)
申请公布日期
1981.11.17
申请号
JP19800052111U
申请日期
1980.04.17
申请人
发明人
分类号
E02C1/00;B02C1/06;E02C1/06;E04G23/08;(IPC1-7):E04G23/08
主分类号
E02C1/00
代理机构
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