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发明名称
Projection system
摘要
申请公布号
US1891439(A)
申请公布日期
1932.12.20
申请号
US19280324873
申请日期
1928.12.10
申请人
TRANS-LUX DAYLIGHT PICTURE SCREEN CORPORATION
发明人
NEWMAN DAVID F.
分类号
G03B21/134
主分类号
G03B21/134
代理机构
代理人
主权项
地址
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