Improvements in lubricating shoes (Machine-translation by Google Translate, not legally binding)
ES290817A3
Propulsor a hydraulic jet (Machine-translation by Google Translate, not legally binding)
ES272189A1
Procedure with your device for the maximum use of fruit and the extraction of terpene aldehydes compounds and their similar ones, from the same (Machine-translation by Google Translate, not legally binding)
ES266423A1
Improvements in accelerators for sedimentation and decantation of oil, water and sediments (Machine-translation by Google Translate, not legally binding)
ES254143A1
Improvements in or relating to the mechanical cleaning of liquid fuels
ES243623A1
Improvements in distance mechanism controls by multiplication transmission organs and speed variator (Machine-translation by Google Translate, not legally binding)