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发明名称
摘要
申请公布号
JPS4913334(U)
申请公布日期
1974.02.04
申请号
JP19720053995U
申请日期
1972.05.08
申请人
发明人
分类号
F21V23/00;F21V23/02;H01F37/00;(IPC1-7):H01F37/00
主分类号
F21V23/00
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