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经营范围
发明名称
Projectors
摘要
申请公布号
US2818771(A)
申请公布日期
1958.01.07
申请号
US19540430110
申请日期
1954.05.17
申请人
AMERICAN OPTICAL COMPANY
发明人
ARMBRUSTER JOHN T.
分类号
G03B21/16
主分类号
G03B21/16
代理机构
代理人
主权项
地址
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