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发明名称
IMPROVEMENTS RELATING TO ROOF COVERING SYSTEMS
摘要
申请公布号
GB9100693(D0)
申请公布日期
1991.02.27
申请号
GB19910000693
申请日期
1991.01.12
申请人
BRIT SLATE LIMITED
发明人
分类号
E04D1/34
主分类号
E04D1/34
代理机构
代理人
主权项
地址
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