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发明名称
Projection system
摘要
申请公布号
US2525957(A)
申请公布日期
1950.10.17
申请号
US19480007256
申请日期
1948.02.09
申请人
TELETYPE CORPORATION
发明人
SCHULER REGINALD G.
分类号
G03B21/134;G09F19/18
主分类号
G03B21/134
代理机构
代理人
主权项
地址
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