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经营范围
发明名称
Fluorescent device
摘要
申请公布号
US2319222(A)
申请公布日期
1943.05.18
申请号
US19410423901
申请日期
1941.12.22
申请人
FERRIS WARREN B
发明人
FERRIS WARREN B.
分类号
F21V9/16
主分类号
F21V9/16
代理机构
代理人
主权项
地址
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