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经营范围
发明名称
Halter fuer Gelbscheiben und Vorsatzlinsen
摘要
申请公布号
DE544344(C)
申请公布日期
1932.02.18
申请号
DED544344D
申请日期
申请人
OTTO MUEHLENBEIN
发明人
分类号
G03B17/12
主分类号
G03B17/12
代理机构
代理人
主权项
地址
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