Inside pipe cutter,申请号US19390248927-传众专利搜索

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发明名称	Inside pipe cutter
摘要
申请公布号	US2219148(A)	申请公布日期	1940.10.22
申请号	US19390248927	申请日期	1939.01.03
申请人	BOWEN GEORGE W	发明人	BOWEN GEORGE W.
分类号	E21B29/00	主分类号	E21B29/00
代理机构		代理人
主权项
地址

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