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发明名称
Projektor zur Vorfuehrung von bandartig zusammengekuppelten Diapositiven
摘要
申请公布号
DE1117905(B)
申请公布日期
1961.11.23
申请号
DE1957P017992
申请日期
1957.02.19
申请人
HANS PROHASKA
发明人
PROHASKA HANS;BOCK WILLY
分类号
G03B23/12
主分类号
G03B23/12
代理机构
代理人
主权项
地址
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