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发明名称
摘要
申请公布号
JPS6287412(U)
申请公布日期
1987.06.04
申请号
JP19850178959U
申请日期
1985.11.20
申请人
发明人
分类号
F16K31/06;H01F7/18;(IPC1-7):H01F7/18
主分类号
F16K31/06
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代理人
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