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经营范围
发明名称
ELECTRO-OPTICAL DEVICE
摘要
申请公布号
GB1341002(A)
申请公布日期
1973.12.19
申请号
GB19720052305
申请日期
1972.11.13
申请人
NATIONAL CASH REGISTER CO
发明人
分类号
G02F1/133;G02F1/13;G02F1/137;G02F1/139;(IPC1-7):G02F1/16;G02F1/20
主分类号
G02F1/133
代理机构
代理人
主权项
地址
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