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发明名称
Belichtungsuhr fuer photographische Kopiergeraete
摘要
申请公布号
DE684039(C)
申请公布日期
1939.11.21
申请号
DE1938G097724D
申请日期
1938.04.24
申请人
OTTO GOESSEL & CO.
发明人
分类号
G04F3/02
主分类号
G04F3/02
代理机构
代理人
主权项
地址
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