Improvements relating to gas masks,申请号GB19380027573-传众专利搜索

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发明名称	Improvements relating to gas masks
摘要
申请公布号	GB510491(A)	申请公布日期	1939.08.02
申请号	GB19380027573	申请日期	1938.09.21
申请人	JEAN BAER;GOTTFRIED BAER;ADOLF URBAN	发明人
分类号	A62B18/00	主分类号	A62B18/00
代理机构		代理人
主权项
地址

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