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发明名称
摘要
申请公布号
JPS50158475(U)
申请公布日期
1975.12.27
申请号
JP19740070954U
申请日期
1974.06.17
申请人
发明人
分类号
F21V17/00;F21V19/00;F21V21/02;(IPC1-7):F21V21/02
主分类号
F21V17/00
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