Ring-joint machine,申请号US19290362059-传众专利搜索

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发明名称	Ring-joint machine
摘要
申请公布号	US1770882(A)	申请公布日期	1930.07.15
申请号	US19290362059	申请日期	1929.05.10
申请人	EVANS WILLIAM L	发明人	EVANS WILLIAM L.
分类号	B27F1/08	主分类号	B27F1/08
代理机构		代理人
主权项
地址

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