Control mechanism for needle-eye polishing machines,申请号US19420436996-传众专利搜索

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发明名称	Control mechanism for needle-eye polishing machines
摘要
申请公布号	US2339603(A)	申请公布日期	1944.01.18
申请号	US19420436996	申请日期	1942.03.31
申请人	THE SINGER MANUFACTURING COMPANY	发明人	HOFFMANN MAX O.
分类号	B21G1/12;B24B5/48	主分类号	B21G1/12
代理机构		代理人
主权项
地址

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