A VENTILATOR FOR A ROOF AND A METHOD OF VENTILATING A ROOF STRUCTURE,申请号GB19890012523-传众专利搜索

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发明名称	A VENTILATOR FOR A ROOF AND A METHOD OF VENTILATING A ROOF STRUCTURE
摘要
申请公布号	GB8912523(D0)	申请公布日期	1989.07.19
申请号	GB19890012523	申请日期	1989.06.01
申请人	BOWLT, GEORGE	发明人
分类号	E04D13/143	主分类号	E04D13/143
代理机构		代理人
主权项
地址

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