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经营范围
发明名称
MICROFILM READER AND WORK STATION
摘要
申请公布号
GB2074755(B)
申请公布日期
1983.05.18
申请号
GB19810012859
申请日期
1981.04.27
申请人
BELL & HOWELL CO
发明人
分类号
G03B21/11;(IPC1-7):G03B21/11
主分类号
G03B21/11
代理机构
代理人
主权项
地址
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