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Priority to ES0267216ApriorityCriticalpatent/ES267216A3/en
Publication of ES267216A3publicationCriticalpatent/ES267216A3/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Hammer of compressed air, especially for the extraction of the coal in the mines, including an arrival of water under pressure, as well as an air arrival also under pressure. (Machine-translation by Google Translate, not legally binding)
ES0267216A1961-05-061961-05-06Picador hammer (Machine-translation by Google Translate, not legally binding)
ExpiredES267216A3
(en)
A force-building apparatus using the down push up of the water on a body introduced in it (Machine-translation by Google Translate, not legally binding)
Improvements in the hydraulic mine stations in the hydraulic mine stations of three or more elements (Machine-translation by Google Translate, not legally binding)