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发明名称
摘要
申请公布号
JPH0417459(U)
申请公布日期
1992.02.13
申请号
JP19900059746U
申请日期
1990.06.06
申请人
发明人
分类号
E03C1/18;(IPC1-7):E03C1/18
主分类号
E03C1/18
代理机构
代理人
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地址
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