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发明名称
摘要
申请公布号
JPS5780779(U)
申请公布日期
1982.05.19
申请号
JP19800157429U
申请日期
1980.11.05
申请人
发明人
分类号
F16L3/12;F16L3/14;(IPC1-7):F16L3/14
主分类号
F16L3/12
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代理人
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