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发明名称
摘要
申请公布号
JPS56146351(U)
申请公布日期
1981.11.04
申请号
JP19800044578U
申请日期
1980.04.01
申请人
发明人
分类号
H01J23/04;F16B9/02;H01J1/15;H01J23/06;(IPC1-7):H01J23/04
主分类号
H01J23/04
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