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发明名称
Transparency holder for photographic enlarging devices
摘要
申请公布号
US3277775(A)
申请公布日期
1966.10.11
申请号
US19630301242
申请日期
1963.08.12
申请人
DURST A.G. FABRIK FOTOTECHNISCHER APPARATE
发明人
DURST JULIUS
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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