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发明名称
摘要
申请公布号
JPS54177021(U)
申请公布日期
1979.12.14
申请号
JP19780074083U
申请日期
1978.05.31
申请人
发明人
分类号
F21V21/04;E04B9/02;(IPC1-7):E04B5/52
主分类号
F21V21/04
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代理人
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