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发明名称
Light shade
摘要
申请公布号
US2878371(A)
申请公布日期
1959.03.17
申请号
US19550503523
申请日期
1955.04.25
申请人
H & H PRODUCTS, INC.
发明人
HANLIN ROBERT A.
分类号
F21V29/00
主分类号
F21V29/00
代理机构
代理人
主权项
地址
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