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经营范围
发明名称
Projection system
摘要
申请公布号
US2283145(A)
申请公布日期
1942.05.12
申请号
US19300432328
申请日期
1930.03.01
申请人
TRANS-LUX CORPORATION
发明人
WELLER FRANK E.
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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