Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to JP3555676ApriorityCriticalpatent/JPS52119382A/ja
Publication of JPS52119382ApublicationCriticalpatent/JPS52119382A/ja
Publication of JPS5750254B2publicationCriticalpatent/JPS5750254B2/ja
Method and apparatus for inspecting a tubular member for inside and outside anomalies utilizing magnetic field detector means positioned on both the inside and outside surfaces