Method of forming tank ends,申请号US19280304421-传众专利搜索

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发明名称	Method of forming tank ends
摘要
申请公布号	US1748577(A)	申请公布日期	1930.02.25
申请号	US19280304421	申请日期	1928.09.07
申请人	AMERICAN WELDING COMPANY	发明人	MERRIAM HENRY P.
分类号	B21D51/24	主分类号	B21D51/24
代理机构		代理人
主权项
地址

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