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.)
Armco SA
Original Assignee
Armco SA
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 Armco SAfiledCriticalArmco SA
Priority to ES1973193673UpriorityCriticalpatent/ES193673Y/en
Publication of ES193673UpublicationCriticalpatent/ES193673U/en
Application grantedgrantedCritical
Publication of ES193673YpublicationCriticalpatent/ES193673Y/en
A metallic tube arrangement, characterized in that it is constituted by helically wound metal strip whose edges are crimped in a double u shape, the tube having helical corrugations whose helix angle corresponds to the helical winding angle of the sheet. (Machine-translation by Google Translate, not legally binding)
ES1973193673U1973-07-271973-07-27
A METAL PIPE ARRANGEMENT.
ExpiredES193673Y
(en)