Corrugated roof ventilation,申请号GB19790009988-传众专利搜索

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发明名称	Corrugated roof ventilation
摘要
申请公布号	GB2020724(A)	申请公布日期	1979.11.21
申请号	GB19790009988	申请日期	1979.03.21
申请人	TURNER M J	发明人
分类号	E04D3/30;E04D3/40;E04D13/17;(IPC1-7):E04D13/16	主分类号	E04D3/30
代理机构		代理人
主权项
地址

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