Ventilator,申请号US19330655518-传众专利搜索

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发明名称	Ventilator
摘要
申请公布号	US1965171(A)	申请公布日期	1934.07.03
申请号	US19330655518	申请日期	1933.02.06
申请人	BOYER HAROLD R	发明人	BOYER HAROLD R.
分类号	F04D25/02;F04D29/28	主分类号	F04D25/02
代理机构		代理人
主权项
地址

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