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发明名称
Photographischer Objektivverschluss.
摘要
申请公布号
CH292102(A)
申请公布日期
1953.07.31
申请号
CHD292102
申请日期
1951.07.18
申请人
BURGER,ERICH
发明人
BURGER,ERICH
分类号
G03B9/22
主分类号
G03B9/22
代理机构
代理人
主权项
地址
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