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.)
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 filedfiledCritical
Priority to ES1976232124UpriorityCriticalpatent/ES232124Y/en
Publication of ES232124UpublicationCriticalpatent/ES232124U/en
Application grantedgrantedCritical
Publication of ES232124YpublicationCriticalpatent/ES232124Y/en
ES1976232124U1976-09-221976-09-22
PERFECTED SEAL APPLICABLE TO VALVES FOR HANDLING AND NON-CONTROL OF FLUIDS OF THE SO-CALLED TYPE OF BUTTERFLY.
ExpiredES232124Y
(en)
Pre-heating system for regenerative and rotary air, with automatically adjustable closure device. (Machine-translation by Google Translate, not legally binding)