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发明名称
摘要
申请公布号
JPS55119491(U)
申请公布日期
1980.08.23
申请号
JP19790018864U
申请日期
1979.02.15
申请人
发明人
分类号
F16L58/10;(IPC1-7):F16L58/10
主分类号
F16L58/10
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代理人
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