Respirator,申请号US19400323640-传众专利搜索

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发明名称	Respirator
摘要
申请公布号	US2300273(A)	申请公布日期	1942.10.27
申请号	US19400323640	申请日期	1940.03.13
申请人	AIR REDUCTION COMPANY, INCORPORATED	发明人	CONNELL KARL
分类号	A62B7/14	主分类号	A62B7/14
代理机构		代理人
主权项
地址

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