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发明名称
Relieving device for film pressure plates controlled by the film exposure mechanism
摘要
申请公布号
US2888867(A)
申请公布日期
1959.06.02
申请号
US19550530244
申请日期
1955.08.24
申请人
CANON CAMERA COMPANY, INC.
发明人
SUZUKAWA HIROSHI
分类号
G03B1/48
主分类号
G03B1/48
代理机构
代理人
主权项
地址
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