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经营范围
发明名称
Ausziehbare Reflexkamera
摘要
申请公布号
DE641735(C)
申请公布日期
1937.02.11
申请号
DE1935ST53229D
申请日期
1935.03.07
申请人
FRANZISKA STOTZ GEB. HELD;WILHELM WEIDENBACH
发明人
分类号
G03B19/12
主分类号
G03B19/12
代理机构
代理人
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