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发明名称
Filmfuehrung fuer fotografische Vergroesserungsgeraete
摘要
申请公布号
DE809370(C)
申请公布日期
1951.07.30
申请号
DE1948P023876
申请日期
1948.12.07
申请人
KLATT WALTER
发明人
KLATT WALTER
分类号
G03B27/32
主分类号
G03B27/32
代理机构
代理人
主权项
地址
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