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发明名称
摘要
申请公布号
JPS5217274(Y2)
申请公布日期
1977.04.19
申请号
JP19720128602U
申请日期
1972.11.08
申请人
发明人
分类号
F21V19/00;F21S2/00;F21V31/00;(IPC1-7):F21V31/00
主分类号
F21V19/00
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