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发明名称
AUTOMATIC FOCUSING SYSTEM FOR PROJECTORS AND THE LIKE
摘要
申请公布号
US3672757(A)
申请公布日期
1972.06.27
申请号
USD3672757
申请日期
1970.09.14
申请人
GAF CORP.
发明人
OLEG SZYMBER;NORMAN SHIM
分类号
G03B21/53;(IPC1-7):G03B3/00;G03B21/14
主分类号
G03B21/53
代理机构
代理人
主权项
地址
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