Improvements introduced in the construction of crankshafts for engines. (Machine-translation by Google Translate, not legally binding)
ES8700380A1
Cable drilling system with reverse circulation sweep with pressure air injection
ES479953A1
Draining procedure of the water extraction and sludge chambers in the drilling equipment. (Machine-translation by Google Translate, not legally binding)
ES457022A1
Sealing valve for sludge scavenging system
ES438094A1
Alternative motor powered by pneumatic or hydraulic pressure. (Machine-translation by Google Translate, not legally binding)
ES335182A1
Coupling for transmission to rotula. (Machine-translation by Google Translate, not legally binding)
ES272695A1
Mototubbor for transmission of force in rotary sense (Machine-translation by Google Translate, not legally binding)
ES260835A1
Improvements in the construction of tire engines (Machine-translation by Google Translate, not legally binding)
ES258491A1
Fast recovery counterpressor for decompression (Machine-translation by Google Translate, not legally binding)
ES253872A1
A perfect machine for the trailer of minerals (Machine-translation by Google Translate, not legally binding)
ES243874A1
Elastic device for transmission of force in rotary sense (Machine-translation by Google Translate, not legally binding)
