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发明名称
Roof penetrating device
摘要
申请公布号
GB2259527(B)
申请公布日期
1995.06.21
申请号
GB19910019684
申请日期
1991.09.14
申请人
HENRY * CRAWFORD;ROBERT PATON * PATERSON
发明人
HENRY * CRAWFORD;ROBERT PATON * PATERSON
分类号
E04D13/12;E04D13/14;E04G21/32;(IPC1-7):E04D13/14
主分类号
E04D13/12
代理机构
代理人
主权项
地址
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