Expanding reamer,申请号US19490086676-传众专利搜索

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发明名称	Expanding reamer
摘要
申请公布号	US2638020(A)	申请公布日期	1953.05.12
申请号	US19490086676	申请日期	1949.04.11
申请人	VICTORY ENGINEERS LIMITED	发明人	FISHWICK ROBERT
分类号	B23D77/04	主分类号	B23D77/04
代理机构		代理人
主权项
地址

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