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发明名称
Kinolampenspiegel
摘要
申请公布号
DE497270(C)
申请公布日期
1930.05.09
申请号
DENDATB139329D
申请日期
申请人
EMIL BUSCH AKT.-GES., OPTISCHE INDUSTRIE
发明人
分类号
G03B21/20
主分类号
G03B21/20
代理机构
代理人
主权项
地址
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