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发明名称
g von Sensitometriekeilen
摘要
申请公布号
DE695797(C)
申请公布日期
1940.09.02
申请号
DE1938U014173D
申请日期
1938.01.20
申请人
UNIVERSUM-FILM AKT.-GES.
发明人
ETZOLD DR. HELLMUTH
分类号
G01J1/42
主分类号
G01J1/42
代理机构
代理人
主权项
地址
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