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发明名称
Negativhalter fuer Vergroesserungsgeraete
摘要
申请公布号
DE1007166(B)
申请公布日期
1957.04.25
申请号
DE1954D017439
申请日期
1954.03.29
申请人
DURST A.G., FABRIK PHOTOGRAPHISCHER APPARATE
发明人
DURST JULIUS;DURST GILBERT
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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