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发明名称
摘要
申请公布号
JPS57186760(U)
申请公布日期
1982.11.26
申请号
JP19810075071U
申请日期
1981.05.21
申请人
发明人
分类号
F16K31/72;F16K17/36;(IPC1-7):F16K17/36
主分类号
F16K31/72
代理机构
代理人
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