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发明名称
Photoflash attachment for hand cameras
摘要
申请公布号
US2697776(A)
申请公布日期
1954.12.21
申请号
US19500167541
申请日期
1950.06.12
申请人
WALE HERBERT E
发明人
WALE HERBERT E.
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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