Box respirator working on a closed circuit,申请号GB19340009129-传众专利搜索

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发明名称	Box respirator working on a closed circuit
摘要
申请公布号	GB418175(A)	申请公布日期	1934.10.19
申请号	GB19340009129	申请日期	1934.03.23
申请人	GASTON DOLNE-DEHAN	发明人
分类号	A62B7/08	主分类号	A62B7/08
代理机构		代理人
主权项
地址

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