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发明名称
摘要
申请公布号
JPS5641902(U)
申请公布日期
1981.04.17
申请号
JP19790125250U
申请日期
1979.09.11
申请人
发明人
分类号
F21V21/00;(IPC1-7):F21L15/08
主分类号
F21V21/00
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