Duct outlet with adjustment for floor level,申请号US19560578617-传众专利搜索

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发明名称	Duct outlet with adjustment for floor level
摘要
申请公布号	US3025884(A)	申请公布日期	1962.03.20
申请号	US19560578617	申请日期	1956.04.17
申请人	H. K. PORTER COMPANY INC.	发明人	JOHNSON ROBERT
分类号	E04F19/08;H02G3/14	主分类号	E04F19/08
代理机构		代理人
主权项
地址

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