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经营范围
发明名称
OPTICAL VISUAL AID
摘要
申请公布号
EP1481278(B1)
申请公布日期
2008.08.13
申请号
EP20030714667
申请日期
2003.03.04
申请人
A. SCHWEIZER GMBH OPTISCHE FABRIK
发明人
SCHUETTINGER, ALFRED
分类号
G02B25/02;G02B25/00;G02B25/04;G03B17/18;G03B17/56;H04N5/225
主分类号
G02B25/02
代理机构
代理人
主权项
地址
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