DEVICE FOR SCRAPING AND TESTING WELL TUBING,申请号CAD515798-传众专利搜索

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发明名称	DEVICE FOR SCRAPING AND TESTING WELL TUBING
摘要
申请公布号	CA515798(A)	申请公布日期	1955.08.16
申请号	CAD515798	申请日期
申请人	SUN OIL COMPANY	发明人	LEHMAN E. HAY
分类号		主分类号
代理机构		代理人
主权项
地址

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