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经营范围
发明名称
Improvements in or relating to a device for covering an aperture
摘要
申请公布号
GB2313609(B)
申请公布日期
2000.06.21
申请号
GB19960011374
申请日期
1996.05.31
申请人
JERZY * WARECKI
发明人
JERZY * WARECKI
分类号
E04F19/08;(IPC1-7):E04F19/08
主分类号
E04F19/08
代理机构
代理人
主权项
地址
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