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发明名称
摘要
申请公布号
JPS538850(Y2)
申请公布日期
1978.03.08
申请号
JP19720111245U
申请日期
1972.09.25
申请人
发明人
分类号
F16J15/34;(IPC1-7):F16J15/34
主分类号
F16J15/34
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代理人
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