IMPROVEMENTS IN VENTILATION DOORS,申请号ZA19880004473-传众专利搜索

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发明名称	IMPROVEMENTS IN VENTILATION DOORS
摘要
申请公布号	ZA8804473(B)	申请公布日期	1990.02.28
申请号	ZA19880004473	申请日期	1988.06.23
申请人	TOM BLAKE	发明人	TOM BLAKE
分类号	E21F	主分类号	E21F
代理机构		代理人
主权项
地址

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