Method of manufacturing electrically-welded vessels,申请号US19290356073-传众专利搜索

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发明名称	Method of manufacturing electrically-welded vessels
摘要
申请公布号	US1784080(A)	申请公布日期	1930.12.09
申请号	US19290356073	申请日期	1929.04.18
申请人	A. O. SMITH CORPORATION	发明人	STRESAU RICHARD
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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