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CONST ELECTRO MECANIQUES DE SA
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CONST ELECTRO MECANIQUES DE SA
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Application filed by CONST ELECTRO MECANIQUES DE SAfiledCriticalCONST ELECTRO MECANIQUES DE SA
Publication of ES294087A1publicationCriticalpatent/ES294087A1/en
Hydraulic advance drilling machine, characterized by the fact that between the hydraulic actuator control jack and the sliding assembly constituted by the auger and its rotating electric motor, a stroke multiplier device is provided. (Machine-translation by Google Translate, not legally binding)
ES0294087A1962-11-291963-11-23Hydraulic feed perforator (Machine-translation by Google Translate, not legally binding)
ExpiredES294087A1
(en)
Device for the automatic regulation of the pressure of advance of drilling machines for rock (Machine-translation by Google Translate, not legally binding)
A hydraulic-electrical installation for the operation and command of movements in mºqunas-tools (Machine-translation by Google Translate, not legally binding)