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发明名称
Improvements in and relating to screens
摘要
申请公布号
GB1144898(A)
申请公布日期
1969.03.12
申请号
GB19650032660
申请日期
1965.07.30
申请人
DAVID MARK COWAN;STANLEY PHILIP COWAN
发明人
RICKETS WILLIAM THOMAS
分类号
G02B23/08
主分类号
G02B23/08
代理机构
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