Aspirator-ventilator apparatus,申请号US19270248797-传众专利搜索

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发明名称	Aspirator-ventilator apparatus
摘要
申请公布号	US1770986(A)	申请公布日期	1930.07.22
申请号	US19270248797	申请日期	1927.12.27
申请人	GEORGES LIAGRE	发明人	LIAGRE GEORGES
分类号	F24F7/02	主分类号	F24F7/02
代理机构		代理人
主权项
地址

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