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发明名称
摘要
申请公布号
JPS548885(B1)
申请公布日期
1979.04.19
申请号
JP19700000075
申请日期
1970.01.06
申请人
发明人
分类号
F16L27/02;F16L27/08;(IPC1-7):F16L27/08
主分类号
F16L27/02
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代理人
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