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发明名称
Flash light
摘要
申请公布号
US1778800(A)
申请公布日期
1930.10.21
申请号
US19250022962
申请日期
1925.04.14
申请人
NATIONAL CARBON COMPANY, INC.
发明人
HENDRY WILLIAM F.
分类号
F21L4/00
主分类号
F21L4/00
代理机构
代理人
主权项
地址
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