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发明名称
Projection system and apparatus
摘要
申请公布号
US1952249(A)
申请公布日期
1934.03.27
申请号
US19290373767
申请日期
1929.06.26
申请人
TRANS-LUX DAYLIGHT PICTURE SCREEN CORPORATION
发明人
HALLORAN FRANK E.
分类号
G03B21/00
主分类号
G03B21/00
代理机构
代理人
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