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发明名称
Dispositif de mise au point d'un appareil photographique
摘要
申请公布号
FR1107128(A)
申请公布日期
1955.12.28
申请号
FRD1107128
申请日期
1954.05.12
申请人
发明人
KIRCHHOFF KURT
分类号
G03B13/20;G03B17/12
主分类号
G03B13/20
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