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发明名称
摘要
申请公布号	JPH0492087(U)	申请公布日期	1992.08.11
申请号	JP19900406535U	申请日期	1990.12.18
申请人		发明人
分类号	E03F7/00;E03F1/00;E03F5/22;F16K31/126;(IPC1-7):E03F7/00	主分类号	E03F7/00
代理机构		代理人
主权项
地址

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