Improvements in the reducing mechanisms of transfer. (Machine-translation by Google Translate, not legally binding)
ES481580A1
Improvements in the translation reducers. (Machine-translation by Google Translate, not legally binding)
ES481582A1
Improvements in the reducing mechanisms for the tour of torres. (Machine-translation by Google Translate, not legally binding)
ES481583A1
Improvements in the giro reducers for torres. (Machine-translation by Google Translate, not legally binding)
ES478579A1
Improvements in the oleohidraulic appliances to produce percussions. (Machine-translation by Google Translate, not legally binding)
ES476065A1
Improvements in portable equipment for drilling soils (Machine-translation by Google Translate, not legally binding)
ES476064A1
Improvements in the brake provisions for rotating towers of works machines. (Machine-translation by Google Translate, not legally binding)
ES476063A1
Improvements in the provisions for tension of tracks for works machines (Machine-translation by Google Translate, not legally binding)
ES461449A1
Improvements in anti-welding protection devices for converter groups of alternate current current. (Machine-translation by Google Translate, not legally binding)
ES459088A3
Improvements in the voltage regulators for continuous current generators. (Machine-translation by Google Translate, not legally binding)
ES455956A1
Improvements in the fluorescent fluorescent lighting switches. (Machine-translation by Google Translate, not legally binding)
ES455207A1
Perfected method to improve advancement in the tools machines. (Machine-translation by Google Translate, not legally binding)
ES410030A1
Backhoe machine. (Machine-translation by Google Translate, not legally binding)
ES403220A1
Stationary terrestrial steam boiler. (Machine-translation by Google Translate, not legally binding)
ES321689A3
Improvements in the construction of bridge cranes. (Machine-translation by Google Translate, not legally binding)