Improved method and means of rendering buildings and rooms proof against the ingress of toxic gases,申请号GB19370012441-传众专利搜索

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发明名称	Improved method and means of rendering buildings and rooms proof against the ingress of toxic gases
摘要
申请公布号	GB494115(A)	申请公布日期	1938.10.20
申请号	GB19370012441	申请日期	1937.05.01
申请人	THOMAS PUNSHON	发明人
分类号	E06B5/14	主分类号	E06B5/14
代理机构		代理人
主权项
地址

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