Magnetic testing apparatus,申请号US19490082714-传众专利搜索

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发明名称	Magnetic testing apparatus
摘要
申请公布号	US2650344(A)	申请公布日期	1953.08.25
申请号	US19490082714	申请日期	1949.03.22
申请人	TUBOSCOPE COMPANY	发明人	LLOYD DONALD
分类号	G01N27/90	主分类号	G01N27/90
代理机构		代理人
主权项
地址

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