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发明名称
An improved optical device for producing pattern repeats
摘要
申请公布号
GB769629(A)
申请公布日期
1957.03.13
申请号
GB19550010914
申请日期
1955.04.15
申请人
RANK PRECISION INDUSTRIES LIMITED
发明人
CELTON MARTIN OAKLEY
分类号
G02B17/06;G02B23/08
主分类号
G02B17/06
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代理人
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