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发明名称
Camera attachment
摘要
申请公布号
US2132683(A)
申请公布日期
1938.10.11
申请号
US19370119481
申请日期
1937.01.07
申请人
EASTMAN KODAK COMPANY
发明人
FARMEN DONALD R.
分类号
G03B17/12
主分类号
G03B17/12
代理机构
代理人
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