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.)
Corporacion Empresarial de Materiales de Construccion COEMAC SA
Original Assignee
Corporacion Empresarial de Materiales de Construccion COEMAC 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 Corporacion Empresarial de Materiales de Construccion COEMAC SAfiledCriticalCorporacion Empresarial de Materiales de Construccion COEMAC SA
Priority to ES1969148596UpriorityCriticalpatent/ES148596Y/en
Publication of ES148596UpublicationCriticalpatent/ES148596U/en
Application grantedgrantedCritical
Publication of ES148596YpublicationCriticalpatent/ES148596Y/en
Improved drainage pipes, characterized in that part of the convex contour constituting their tubular pieces is replaced, in a sector of the suitable amplitude, by concave, symmetrical and even flat form, in a closed continuous whole; whose part replaced and destined to be at the upper level is provided with perforations, in number, placement and size appropriate to the task to be accomplished. (Machine-translation by Google Translate, not legally binding)