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发明名称
SCREEN ASSEMBLIES
摘要
申请公布号
GB1469232(A)
申请公布日期
1977.04.06
申请号
GB19730011683
申请日期
1974.02.28
申请人
WATKINSON C
发明人
分类号
E04B1/344;F16P1/00;(IPC1-7):A45F1/14
主分类号
E04B1/344
代理机构
代理人
主权项
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