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发明名称
Projection screen
摘要
申请公布号
GB2446990(B)
申请公布日期
2009.08.19
申请号
GB20080010805
申请日期
2008.06.12
申请人
PETER BEATY;ROLAND MAURICE BOUGHTON
发明人
PETER BEATY;ROLAND MAURICE BOUGHTON
分类号
G03B21/56
主分类号
G03B21/56
代理机构
代理人
主权项
地址
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