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发明名称
Perfectionnement aux appareils photographiques
摘要
申请公布号
FR1133251(A)
申请公布日期
1957.03.25
申请号
FRD1133251
申请日期
1955.10.24
申请人
发明人
DECKEL HANS;DECKEL FRIEDRICH WILHELM
分类号
G03B3/02;G03B9/22
主分类号
G03B3/02
代理机构
代理人
主权项
地址
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