Spool-making apparatus,申请号US19360105686-传众专利搜索

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发明名称	Spool-making apparatus
摘要
申请公布号	US2169251(A)	申请公布日期	1939.08.15
申请号	US19360105686	申请日期	1936.10.15
申请人	JOHNSON JOHN A	发明人	JOHNSON JOHN A.
分类号	B21D53/26	主分类号	B21D53/26
代理机构		代理人
主权项
地址

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