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发明名称
APERTURE CONTROL MECHANISM FOR PHOTOGRAPHIC TAKING LENS SYSTEM
摘要
申请公布号
US3589259(A)
申请公布日期
1971.06.29
申请号
USD3589259
申请日期
1968.12.16
申请人
RICOH:KK.
发明人
TADAYUKI IMAI
分类号
G03B9/07;(IPC1-7):G03B9/06
主分类号
G03B9/07
代理机构
代理人
主权项
地址
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