Hot air respirator,申请号US19320600172-传众专利搜索

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发明名称	Hot air respirator
摘要
申请公布号	US1982412(A)	申请公布日期	1934.11.27
申请号	US19320600172	申请日期	1932.03.21
申请人	BJURSTROM JOHN E	发明人	BJURSTROM JOHN E.
分类号	A61M16/10	主分类号	A61M16/10
代理机构		代理人
主权项
地址

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