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发明名称
摘要
申请公布号
JPS56106755(U)
申请公布日期
1981.08.19
申请号
JP19800003457U
申请日期
1980.01.18
申请人
发明人
分类号
F16K31/36;A62C37/20;A62C37/46;(IPC1-7):A62C37/06
主分类号
F16K31/36
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代理人
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