Method of working metal tubes,申请号US19300442950-传众专利搜索

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发明名称	Method of working metal tubes
摘要
申请公布号	US1908074(A)	申请公布日期	1933.05.09
申请号	US19300442950	申请日期	1930.04.09
申请人	JOHN SQUIRES	发明人	SQUIRES JOHN
分类号	B21D53/78	主分类号	B21D53/78
代理机构		代理人
主权项
地址

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