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发明名称
OPTICAL DISPLAY APPARATUS
摘要
申请公布号
CA727909(A)
申请公布日期
1966.02.15
申请号
CAD727909
申请日期
申请人
THE NATIONAL CASH REGISTER COMPANY
发明人
HARLEY L. BJELLAND;DAVID A. GRAFTON;STEPHEN M. F. MAK
分类号
主分类号
代理机构
代理人
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