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经营范围
发明名称
Negativhalter fuer photographische Vergroesserungsgeraete
摘要
申请公布号
DE676962(C)
申请公布日期
1939.06.16
申请号
DE1938H154240D
申请日期
1938.01.05
申请人
LEO HAENSLER;MARIE FREUDE
发明人
HAENSLER LEO
分类号
G03B27/62
主分类号
G03B27/62
代理机构
代理人
主权项
地址
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