Filter making machine,申请号US19290411463-传众专利搜索

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发明名称	Filter making machine
摘要
申请公布号	US1879355(A)	申请公布日期	1932.09.27
申请号	US19290411463	申请日期	1929.12.04
申请人	MOTOR IMPROVEMENTS, INC.	发明人	LIDDELL ROBERT P. F.
分类号	B21H7/00	主分类号	B21H7/00
代理机构		代理人
主权项
地址

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