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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries LtdfiledCriticalMitsubishi Heavy Industries Ltd
Priority to JP14700779ApriorityCriticalpatent/JPS5946321B2/ja
Publication of JPS5670402ApublicationCriticalpatent/JPS5670402A/ja
Publication of JPS5946321B2publicationCriticalpatent/JPS5946321B2/ja
Dispositif de mesure des parametres caracteristiques d'un forage, au fond du forage ou a la profondeur desiree durant l'attaque des differentes couches geologiques