Pressure compensated inhalationexhalation valve for pressure breathing mask,申请号US19580760817-传众专利搜索

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发明名称	Pressure compensated inhalationexhalation valve for pressure breathing mask
摘要
申请公布号	US2954793(A)	申请公布日期	1960.10.04
申请号	US19580760817	申请日期	1958.09.12
申请人	SEELER HENRY W	发明人	SEELER HENRY W.
分类号	A62B9/02	主分类号	A62B9/02
代理机构		代理人
主权项
地址

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