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发明名称
摘要
申请公布号
JPS4635485(Y1)
申请公布日期
1971.12.07
申请号
JP19670070570U
申请日期
1967.08.16
申请人
发明人
分类号
(IPC1-7):F16L3/14
主分类号
(IPC1-7):F16L3/14
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代理人
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