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发明名称
écran de projection
摘要
申请公布号
FR1486078(A)
申请公布日期
1967.06.23
申请号
FR19660068477
申请日期
1966.07.06
申请人
D-150, INC.
发明人
分类号
G03B21/60
主分类号
G03B21/60
代理机构
代理人
主权项
地址
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