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发明名称
摘要
申请公布号
JPH0254873(U)
申请公布日期
1990.04.20
申请号
JP19880134589U
申请日期
1988.10.15
申请人
发明人
分类号
E03D9/00;(IPC1-7):E03D9/00
主分类号
E03D9/00
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代理人
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地址
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