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发明名称
摘要
申请公布号
JPH0278617(U)
申请公布日期
1990.06.18
申请号
JP19880156887U
申请日期
1988.11.30
申请人
发明人
分类号
E01D15/14;B63B35/58;E01D101/00;E01D101/40;(IPC1-7):E01D15/14
主分类号
E01D15/14
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