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发明名称
摘要
申请公布号
JPH0575593(U)
申请公布日期
1993.10.15
申请号
JP19920023133U
申请日期
1992.03.17
申请人
发明人
分类号
B08B17/02;F16L55/00;(IPC1-7):F16L55/00
主分类号
B08B17/02
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代理人
主权项
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