Wire twisting device,申请号US19400370151-传众专利搜索

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发明名称	Wire twisting device
摘要
申请公布号	US2247776(A)	申请公布日期	1941.07.01
申请号	US19400370151	申请日期	1940.12.14
申请人	GERRARD JOHN M	发明人	GERRARD JOHN M.
分类号	B21F15/00	主分类号	B21F15/00
代理机构		代理人
主权项
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