Electric pipe forming,申请号US19420463958-传众专利搜索

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发明名称	Electric pipe forming
摘要
申请公布号	US2371090(A)	申请公布日期	1945.03.06
申请号	US19420463958	申请日期	1942.10.30
申请人	A. O. SMITH CORPORATION	发明人	WESTIN SVEN;WESTIN AXEL
分类号	B21C9/00	主分类号	B21C9/00
代理机构		代理人
主权项
地址

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