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发明名称
摘要
申请公布号
JPH0350177(Y2)
申请公布日期
1991.10.25
申请号
JP19850155560U
申请日期
1985.10.11
申请人
发明人
分类号
E01D19/10;E04F11/18;E04H17/14;E06B9/01;(IPC1-7):E04F11/18
主分类号
E01D19/10
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