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发明名称
AUTOMATISCHE FOKUSSIERUNG FUER EINEN RETROPROJEKTOR.
摘要
申请公布号
DE3676533(D1)
申请公布日期
1991.02.07
申请号
DE19863676533
申请日期
1986.03.21
申请人
MINNESOTA MINING & MFG. CO., SAINT PAUL, MINN., US
发明人
DREYER, JR. C/O MINNESOTA MINING AND, JOHN F., ST. PAUL MINNESOTA 55133-3427, US
分类号
G03B21/132;(IPC1-7):G03B21/132
主分类号
G03B21/132
代理机构
代理人
主权项
地址
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