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发明名称
摘要
申请公布号
JPS5425756(U)
申请公布日期
1979.02.20
申请号
JP19770098338U
申请日期
1977.07.25
申请人
发明人
分类号
F16L3/00;F16L3/22;F16L59/14;F16L59/147;(IPC1-7):F16L3/22
主分类号
F16L3/00
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