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申请公布号
JPS54128920(U)
申请公布日期
1979.09.07
申请号
JP19780025272U
申请日期
1978.02.28
申请人
发明人
分类号
F16L21/02;(IPC1-7):F16L21/02
主分类号
F16L21/02
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