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发明名称
Mine door construction
摘要
申请公布号
GB2381547(A)
申请公布日期
2003.05.07
申请号
GB20020025255
申请日期
2002.10.30
申请人
* JACK KENNEDY METAL PRODUCTS AND BUILDINGS INC
发明人
WILLIAM R * KENNEDY;JOHN M * KENNEDY
分类号
E21F17/12;(IPC1-7):E21F1/10
主分类号
E21F17/12
代理机构
代理人
主权项
地址
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