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发明名称
摘要
申请公布号
JPH0484419(U)
申请公布日期
1992.07.22
申请号
JP19900128269U
申请日期
1990.11.30
申请人
发明人
分类号
E01F9/00;E01F9/011;G02B5/08;(IPC1-7):E01F9/00
主分类号
E01F9/00
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