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发明名称
Bulb flashing device for photographic purposes
摘要
申请公布号
US2299497(A)
申请公布日期
1942.10.20
申请号
US19410381239
申请日期
1941.03.01
申请人
ROSENTHAL ADOLPH H
发明人
ROSENTHAL ADOLPH H.
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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