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发明名称
摘要
申请公布号
JPH01137374(U)
申请公布日期
1989.09.20
申请号
JP19880030714U
申请日期
1988.03.07
申请人
发明人
分类号
E03C1/20;E03C1/18;(IPC1-7):E03C1/18
主分类号
E03C1/20
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