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经营范围
发明名称
Filmbetrachtungsapparat
摘要
申请公布号
DE520585(C)
申请公布日期
1931.03.12
申请号
DENDATA056928D
申请日期
申请人
LYTAX-WERKE G.M.B.H.
发明人
分类号
G03B19/18
主分类号
G03B19/18
代理机构
代理人
主权项
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