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发明名称
Photographic flash lighting apparatus
摘要
申请公布号
US2498640(A)
申请公布日期
1950.02.28
申请号
US19480043019
申请日期
1948.08.07
申请人
BECK ROBERT C
发明人
BECK ROBERT C.
分类号
H05B41/32
主分类号
H05B41/32
代理机构
代理人
主权项
地址
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