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发明名称
摘要
申请公布号
JPS5623591(Y2)
申请公布日期
1981.06.03
申请号
JP19750171511U
申请日期
1975.12.19
申请人
发明人
分类号
F16L3/00;F16L5/02;F16L58/18;(IPC1-7):F16L5/02
主分类号
F16L3/00
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代理人
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