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发明名称
Aufsatz fuer Vergroesserungsrahmen mit automatischer Belichtungsregelung
摘要
申请公布号
DE1043795(B)
申请公布日期
1958.11.13
申请号
DE1957G022973
申请日期
1957.09.20
申请人
MAX GRAGGO
发明人
GRAGGO MAX
分类号
G03B27/74
主分类号
G03B27/74
代理机构
代理人
主权项
地址
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