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.)
De Wendel et Cie SA
Kind
Original Assignee
De Wendel et Cie SA
Kind
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 De Wendel et Cie SA, KindfiledCriticalDe Wendel et Cie SA
Priority to ES1851000567ApriorityCriticalpatent/ES567H1/es
Publication of ES567H1publicationCriticalpatent/ES567H1/es
ES1851000567A1851-09-021851-09-02Perfecciones relativas al sondeo o barreno, al ahondamiento de pozos de gran diametro y al revestido de los mismos
ExpiredES567H1
(es)