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发明名称
Improvements in or relating to screens
摘要
申请公布号
GB829975(A)
申请公布日期
1960.03.09
申请号
GB19570039069
申请日期
1957.12.16
申请人
HAROLD SCHADE
发明人
分类号
B01D29/11
主分类号
B01D29/11
代理机构
代理人
主权项
地址
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