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发明名称
Mine stopping having a swinging door
摘要
申请公布号
GB2343692(B)
申请公布日期
2002.11.06
申请号
GB19990026549
申请日期
1999.11.09
申请人
* JACK KENNEDY METAL PRODUCTS AND BUILDINGS INC
发明人
WILLIAM R * KENNEDY;JOHN M * KENNEDY
分类号
E21F1/10;E21F1/14;(IPC1-7):E21F1/10
主分类号
E21F1/10
代理机构
代理人
主权项
地址
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