IMPROVEMENTS IN ROOF VENTILATION,申请号GB19850006195-传众专利搜索

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发明名称	IMPROVEMENTS IN ROOF VENTILATION
摘要
申请公布号	GB2157738(B)	申请公布日期	1987.02.25
申请号	GB19850006195	申请日期	1985.03.11
申请人	* NICHOLL & WOOD LIMITED	发明人	WILLIAM * RADCLIFFE
分类号	E04D1/30;E04D13/17;(IPC1-7):E04D1/30	主分类号	E04D1/30
代理机构		代理人
主权项
地址

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