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发明名称
摘要
申请公布号
JPS5245852(Y2)
申请公布日期
1977.10.19
申请号
JP19720026974U
申请日期
1972.03.04
申请人
发明人
分类号
F16L41/06;(IPC1-7):F16L41/06
主分类号
F16L41/06
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