发明名称 TENSIONED PROJECTION SCREEN ASSEMBLY
摘要 A projection screen assembly is disclosed including a projection screen and a projection screen frame. The projection screen frame includes a plurality of projection screen frame modules that may be coupled together to provide a projection frame for projection screens of different sizes.
申请公布号 EP2440973(A1) 申请公布日期 2012.04.18
申请号 EP20100786980 申请日期 2010.06.14
申请人 DRAPER, INC. 发明人 RISHER, KENNETH, M.
分类号 G03B21/56 主分类号 G03B21/56
代理机构 代理人
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