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发明名称
Control devices for optical objectives of variable focal length
摘要
申请公布号
US2988974(A)
申请公布日期
1961.06.20
申请号
US19600032842
申请日期
1960.05.31
申请人
WILLIAM CLIFFORD THOMAS;REGINALD ADAMS JOHN
发明人
CLIFFORD THOMAS WILLIAM;ADAMS JOHN REGINALD
分类号
G03B17/14
主分类号
G03B17/14
代理机构
代理人
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地址
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