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发明名称
Electric lamp
摘要
申请公布号
US2223873(A)
申请公布日期
1940.12.03
申请号
US19400324535
申请日期
1940.03.18
申请人
PIEPER ALPHONSE F
发明人
PIEPER ALPHONSE F.
分类号
F21S6/00
主分类号
F21S6/00
代理机构
代理人
主权项
地址
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