Device for fabricating detachable drill bits,申请号US19370165243-传众专利搜索

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发明名称	Device for fabricating detachable drill bits
摘要
申请公布号	US2163935(A)	申请公布日期	1939.06.27
申请号	US19370165243	申请日期	1937.09.23
申请人	INTERNATIONAL DETACHABLE BITS & EQUIPMENT, LIMITED	发明人	COOK CHARLES EDWARD
分类号	B21K5/06	主分类号	B21K5/06
代理机构		代理人
主权项
地址

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