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发明名称
摘要
申请公布号
JPH0332657(U)
申请公布日期
1991.03.29
申请号
JP19890093735U
申请日期
1989.08.08
申请人
发明人
分类号
E03C1/01;(IPC1-7):E03C1/01
主分类号
E03C1/01
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代理人
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