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发明名称
Flashlight operating device
摘要
申请公布号
US2238115(A)
申请公布日期
1941.04.15
申请号
US19380223026
申请日期
1938.08.04
申请人
HERMAN J. SCHOENFELD
发明人
JOHNSON EVERARD L.
分类号
G03B15/04
主分类号
G03B15/04
代理机构
代理人
主权项
地址
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