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发明名称
摘要
申请公布号
JPH0236881(U)
申请公布日期
1990.03.09
申请号
JP19880115648U
申请日期
1988.09.02
申请人
发明人
分类号
G09F13/00;E01F13/00;E01F13/04;(IPC1-7):G09F13/00
主分类号
G09F13/00
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