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发明名称
KLEINBILD-PROJEKTOR.
摘要
申请公布号
DE1681570(U)
申请公布日期
1954.08.12
申请号
DE195400L9722U
申请日期
1954.01.30
申请人
ERNST LEITZ G.M.B.H.
发明人
分类号
主分类号
代理机构
代理人
主权项
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