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发明名称
Bildwechselvorrichtung fuer einzelne Diapositive
摘要
申请公布号
DE948196(C)
申请公布日期
1956.08.30
申请号
DE1953O003035
申请日期
1953.07.01
申请人
OPTISCHE WERKE C.A. STEINHEIL SOEHNE G.M.B.H.
发明人
BERK WALTER
分类号
G03B23/14
主分类号
G03B23/14
代理机构
代理人
主权项
地址
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