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经营范围
发明名称
Photographische Kamera
摘要
申请公布号
DE621334(C)
申请公布日期
1935.11.05
申请号
DE1931N031873D
申请日期
1931.04.02
申请人
WILLY NEUBERT
发明人
分类号
G03B17/42
主分类号
G03B17/42
代理机构
代理人
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