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发明名称
摘要
申请公布号
JPH0439890(Y2)
申请公布日期
1992.09.18
申请号
JP19880029687U
申请日期
1988.03.04
申请人
发明人
分类号
E03C1/042;(IPC1-7):E03C1/042
主分类号
E03C1/042
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代理人
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地址
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