Suction cleaner thread guard on converter port covers,申请号US19490129914-传众专利搜索

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发明名称	Suction cleaner thread guard on converter port covers
摘要
申请公布号	US2671923(A)	申请公布日期	1954.03.16
申请号	US19490129914	申请日期	1949.11.29
申请人	THE HOOVER COMPANY	发明人	BRIERE NELSON W. LA
分类号	A47L5/32	主分类号	A47L5/32
代理机构		代理人
主权项
地址

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