Process of and apparatus for manufacturing helices,申请号US19370120805-传众专利搜索

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发明名称	Process of and apparatus for manufacturing helices
摘要
申请公布号	US2164679(A)	申请公布日期	1939.07.04
申请号	US19370120805	申请日期	1937.01.15
申请人	FELTEN & GUILLEAUME CARLSWERK ACTIEN-GESELLSCHAFT	发明人	BRAUN ALFRED
分类号	H01B13/20	主分类号	H01B13/20
代理机构		代理人
主权项
地址

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