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发明名称
摘要
申请公布号
JPS546809(B2)
申请公布日期
1979.04.02
申请号
JP19750138390
申请日期
1975.11.17
申请人
发明人
分类号
F21V21/04;E04B9/00;F21S4/00;F21S8/02;F21V21/02
主分类号
F21V21/04
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代理人
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