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发明名称
Perfectionnements apportés aux dispositifs de réglage focal pour projecteurs et appreils photographiques
摘要
申请公布号
FR733491(A)
申请公布日期
1932.10.06
申请号
FRD733491
申请日期
1932.03.15
申请人
CAM SYNDICATE LIMITED
发明人
HILLERY-COLLINGS CHARLES EDWARD
分类号
G03B13/18
主分类号
G03B13/18
代理机构
代理人
主权项
地址
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