Perfected procedure for preparation of aluminum surfaces and alloys for their subsequent coating with metals, lacquers and paints. (Machine-translation by Google Translate, not legally binding)
ES274230A1
Improvements in the manufacture of semiconductor plates (Machine-translation by Google Translate, not legally binding)
ES264824A1
New protection system for silicon and germanium rectifier (Machine-translation by Google Translate, not legally binding)
US3188548A
System for protection of silicon, selenium and germanium rectifiers
ES223811A1
A three-phase auxiliary collector machine for coupling three-phase induction motors (Machine-translation by Google Translate, not legally binding)
ES214970A1
A voltage regulation transformer under load (Machine-translation by Google Translate, not legally binding)
ES205985A1
A coupling of embreague and unembreague (Machine-translation by Google Translate, not legally binding)
ES204410A1
An automatic speed stabilizer for adjustable speed motors (Machine-translation by Google Translate, not legally binding)
ES174319A1
Improvements in the construction of alternate current engines of introduction, asynchronic as synchronized.
ES160524A1
Device applicable to the dividing appliances of the milling machines, brushing and drilling
