Method for elongating metal blanks,申请号US19380236457-传众专利搜索

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法人/股东/高管

发明名称	Method for elongating metal blanks
摘要
申请公布号	US2223039(A)	申请公布日期	1940.11.26
申请号	US19380236457	申请日期	1938.10.22
申请人	KRAUSE FRANK R	发明人	KRAUSE FRANK R.
分类号	B21B1/42	主分类号	B21B1/42
代理机构		代理人
主权项
地址

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