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经营范围
发明名称
Vorrichtung zur Scharfeinstellung fotografischer Kameras
摘要
申请公布号
DE860133(C)
申请公布日期
1952.12.18
申请号
DE1950M004464
申请日期
1950.06.22
申请人
MICHEL JOHANN
发明人
MICHEL JOHANN
分类号
G03B3/00
主分类号
G03B3/00
代理机构
代理人
主权项
地址
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