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经营范围
发明名称
Improved roof anchor
摘要
申请公布号
GB2251020(B)
申请公布日期
1995.07.12
申请号
GB19910025717
申请日期
1991.12.03
申请人
HENRY * CRAWFORD
发明人
HENRY * CRAWFORD
分类号
E04D13/12;E04G5/04;E04G21/32;(IPC1-7):E04G21/32
主分类号
E04D13/12
代理机构
代理人
主权项
地址
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