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发明名称
Photographic exposure meter coupled to the shutter speed indicator of a camera
摘要
申请公布号
US2952194(A)
申请公布日期
1960.09.13
申请号
US19580762017
申请日期
1958.09.19
申请人
CANON CAMERA COMPANY, INC.
发明人
GOSHIMA TAKESHI
分类号
G03B7/04
主分类号
G03B7/04
代理机构
代理人
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