Apparatus for producing seamless tubes,申请号US19400353487-传众专利搜索

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发明名称	Apparatus for producing seamless tubes
摘要
申请公布号	US2309690(A)	申请公布日期	1943.02.02
申请号	US19400353487	申请日期	1940.08.21
申请人	AIKEN ANDREW J	发明人	AIKEN ANDREW J.
分类号	B21B19/04	主分类号	B21B19/04
代理机构		代理人
主权项
地址

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