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.)
Individual
Original Assignee
Individual
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 IndividualfiledCriticalIndividual
Priority to ES289068ApriorityCriticalpatent/ES289068A2/en
Publication of ES289068A2publicationCriticalpatent/ES289068A2/en
Polysaccharides And Polysaccharide Derivatives
(AREA)
Abstract
Improvements in the object of the Main Patent No. 281.715 by: Drainage system, characterized in that the lower part or channel can be of filtering nature, like the upper part. (Machine-translation by Google Translate, not legally binding)
ES289068A1963-06-151963-06-15Drainage system (Machine-translation by Google Translate, not legally binding)
ExpiredES289068A2
(en)