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发明名称
摘要
申请公布号
JPS5578885(U)
申请公布日期
1980.05.30
申请号
JP19780163634U
申请日期
1978.11.27
申请人
发明人
分类号
F16L21/04;F16L19/03;(IPC1-7):F16L19/03
主分类号
F16L21/04
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