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发明名称
摘要
申请公布号
JPS54115621(U)
申请公布日期
1979.08.14
申请号
JP19780010794U
申请日期
1978.02.02
申请人
发明人
分类号
F16L49/00;F16J15/06;(IPC1-7):F16L49/00
主分类号
F16L49/00
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代理人
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