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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP11707580ApriorityCriticalpatent/JPS5743342A/ja
Publication of JPS5743342ApublicationCriticalpatent/JPS5743342A/ja
Publication of JPS6314809B2publicationCriticalpatent/JPS6314809B2/ja
Procedimento per trovare e seguire in modo completamente automatico il cordone di saldatura nel controllo non distruttivo di tubi saldati ad arco sommerso