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发明名称
Direct lighting luminaires
摘要
申请公布号
US2748263(A)
申请公布日期
1956.05.29
申请号
US19520303652
申请日期
1952.08.11
申请人
HOLOPHANE COMPANY, INC.
发明人
FRANCK KURT;MCPHAIL ROBERT G.
分类号
F21S8/00;F21S8/02;F21V5/00;F21V5/02
主分类号
F21S8/00
代理机构
代理人
主权项
地址
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