Bagless vacuum cleaner,申请号US19300472703-传众专利搜索

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发明名称	Bagless vacuum cleaner
摘要
申请公布号	US1929025(A)	申请公布日期	1933.10.03
申请号	US19300472703	申请日期	1930.08.02
申请人	THE QUADREX CORPORATION	发明人	LEATHERS WARD
分类号	A47L9/32	主分类号	A47L9/32
代理机构		代理人
主权项
地址

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