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发明名称
摘要
申请公布号
JPS4511173(Y1)
申请公布日期
1970.05.19
申请号
JP19690044240U
申请日期
1969.05.14
申请人
发明人
分类号
(IPC1-7):F16L55/00
主分类号
(IPC1-7):F16L55/00
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