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发明名称
Electric lamp support
摘要
申请公布号
US2331877(A)
申请公布日期
1943.10.19
申请号
US19400371356
申请日期
1940.12.23
申请人
WELFIELD HENRY S;STERLING DAVID L
发明人
WELFIELD HENRY S.;STERLING DAVID L.
分类号
F21S4/00
主分类号
F21S4/00
代理机构
代理人
主权项
地址
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