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经营范围
发明名称
Sammellinse mit durchsichtigem Tragrand
摘要
申请公布号
DE691697(C)
申请公布日期
1940.06.03
申请号
DE1934B166048D
申请日期
1934.07.05
申请人
EMIL BUSCH AKT.-GES. OPTISCHE INDUSTRIE
发明人
分类号
G02B27/02
主分类号
G02B27/02
代理机构
代理人
主权项
地址
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