Overcast structure for ventilation of intersecting mines,申请号GB20010000892-传众专利搜索

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发明名称	Overcast structure for ventilation of intersecting mines
摘要
申请公布号	GB2358209(A)	申请公布日期	2001.07.18
申请号	GB20010000892	申请日期	2001.01.12
申请人	* JACK KENNEDY METAL PRODUCTS AND BUILDINGS INC	发明人	WILLIAM R * KENNEDY;JOHN MATTHEW * KENNEDY
分类号	E21F1/14;(IPC1-7):E21F1/14	主分类号	E21F1/14
代理机构		代理人
主权项
地址

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