Air filter alarm,申请号US19580749919-传众专利搜索

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发明名称	Air filter alarm
摘要
申请公布号	US3052207(A)	申请公布日期	1962.09.04
申请号	US19580749919	申请日期	1958.07.21
申请人	GENERAL MOTORS CORPORATION	发明人	LEWIS DONALD B.
分类号	B01D46/42;F02M35/09	主分类号	B01D46/42
代理机构		代理人
主权项
地址

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