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Priority to ES0240548ApriorityCriticalpatent/ES240548A1/en
Publication of ES240548A1publicationCriticalpatent/ES240548A1/en
Improvements in hydraulic elevators with double valve, characterized by the fact that a spring, with a spring, is installed in the base of the elevator to absorb the liquid, which passes through it to flow into the cylinder that houses the piston of the elevator. (Machine-translation by Google Translate, not legally binding)
ES0240548A1958-03-071958-03-07Improvements in hydraulic elevators with double valve (Machine-translation by Google Translate, not legally binding)
ExpiredES240548A1
(en)