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Priority to ES0296884ApriorityCriticalpatent/ES296884A1/en
Publication of ES296884A1publicationCriticalpatent/ES296884A1/en
Installation of continuous filtration for tank water, characterized by the fact that under the bed of sand that forms the bottom of the tank, constitutes a permeable chamber in direct communication with a water inlet pipe to filter, whose tube is fed with the dirty water of the tank by dragging by air at low pressure, circulating the water from the tank to the tube, from this to the chamber and from this, crossing the bed of sand in a vertical ascending direction, to the fish tank. (Machine-translation by Google Translate, not legally binding)
ES0296884A1964-02-261964-02-26Installation for the water of peceras (Machine-translation by Google Translate, not legally binding)
ExpiredES296884A1
(en)
Electro mechanical system for cleaning the filters provided in air conditioning installations. (Machine-translation by Google Translate, not legally binding)