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发明名称
IMAGE PLANE POSITION APPRAISAL SYSTEM FOR A SLIDE PROJECTOR
摘要
申请公布号
CA778127(A)
申请公布日期
1968.02.13
申请号
CAD778127
申请日期
申请人
BELL AND HOWELL COMPANY
发明人
ERIC K. MAXON
分类号
主分类号
代理机构
代理人
主权项
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