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发明名称
Perfectionnements aux appareils de microcopie photographique
摘要
申请公布号
FR1025935(A)
申请公布日期
1953.04.21
申请号
FRD1025935
申请日期
1950.10.13
申请人
MICRODOC
发明人
分类号
G03B27/46
主分类号
G03B27/46
代理机构
代理人
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