Method and apparatus for making thread chasers,申请号US19300434391-传众专利搜索

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发明名称	Method and apparatus for making thread chasers
摘要
申请公布号	US1793727(A)	申请公布日期	1931.02.24
申请号	US19300434391	申请日期	1930.03.08
申请人	JOHN BATH	发明人	WALKER ERNEST A.
分类号	B24B3/60	主分类号	B24B3/60
代理机构		代理人
主权项
地址

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