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经营范围
发明名称
Vakuumspektralapparat
摘要
申请公布号
DE620540(C)
申请公布日期
1935.10.23
申请号
DE1929S095366D
申请日期
1929.12.06
申请人
DR. HUGO SEEMANN
发明人
分类号
G01J3/00
主分类号
G01J3/00
代理机构
代理人
主权项
地址
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