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发明名称
摘要
申请公布号
JPH049489(U)
申请公布日期
1992.01.28
申请号
JP19900051179U
申请日期
1990.05.15
申请人
发明人
分类号
E03D9/00;E03D13/00;(IPC1-7):E03D13/00
主分类号
E03D9/00
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代理人
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