Boring or internal forming tool,申请号US19400368307-传众专利搜索

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发明名称	Boring or internal forming tool
摘要
申请公布号	US2272200(A)	申请公布日期	1942.02.10
申请号	US19400368307	申请日期	1940.12.03
申请人	THE NATIONAL ACME COMPANY	发明人	HOGG WILLIAM J.
分类号	B23B29/034	主分类号	B23B29/034
代理机构		代理人
主权项
地址

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