Ventilator grating,申请号US19590823762-传众专利搜索

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发明名称	Ventilator grating
摘要
申请公布号	US2990766(A)	申请公布日期	1961.07.04
申请号	US19590823762	申请日期	1959.06.29
申请人	LEX	发明人	LEX EDUARD;BAUERMEISTER KURT
分类号	B61C17/04;F01B7/02;F02B41/04;F02B75/02;F24F13/08;F42C15/295	主分类号	B61C17/04
代理机构		代理人
主权项
地址

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