An improved means of protecting roofs against bombs,申请号GB19380014022-传众专利搜索

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发明名称	An improved means of protecting roofs against bombs
摘要
申请公布号	GB514691(A)	申请公布日期	1939.11.15
申请号	GB19380014022	申请日期	1938.05.11
申请人	DUNCAN MCLEAN	发明人
分类号	E04H9/06	主分类号	E04H9/06
代理机构		代理人
主权项
地址

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