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发明名称
摘要
申请公布号
JPS57187962(U)
申请公布日期
1982.11.29
申请号
JP19810077006U
申请日期
1981.05.26
申请人
发明人
分类号
F16J15/18;(IPC1-7):F16J15/18
主分类号
F16J15/18
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代理人
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地址
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