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Covema S A E
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Covema S A E
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Priority to ES1971166332UpriorityCriticalpatent/ES166332Y/en
Publication of ES166332UpublicationCriticalpatent/ES166332U/en
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Publication of ES166332YpublicationCriticalpatent/ES166332Y/en
Agricultural Chemicals And Associated Chemicals
(AREA)
Abstract
Calibrator, characterized, essentially, because it is made up of a bathtub, tubular, which has a vacuum calibrator, interchangeable, driven by a suction pump and the electrical installation with its stop and start organs, having a front end the gauge is associated with a vacuum gauge and fully independent operating regulation valve. (Machine-translation by Google Translate, not legally binding)
Improvements in the construction of autoaspirant centrifugal pumps with two or more channels directors. (Machine-translation by Google Translate, not legally binding)