Improvements in grounding electrodes. (Machine-translation by Google Translate, not legally binding)
ES320289A3
Improvements in flexible lever disconnectors with frontal frontal impulsion. (Machine-translation by Google Translate, not legally binding)
ES320290A3
Improvements in manual opening fuse disconnectors. (Machine-translation by Google Translate, not legally binding)
ES313118A3
Improvements in insulating handles, for the connection and disconnection of fuse cartridges. (Machine-translation by Google Translate, not legally binding)
ES296184A3
Improvements in electrical connection devices (Machine-translation by Google Translate, not legally binding)
ES293538A3
Improvements in security connectors (Machine-translation by Google Translate, not legally binding)
ES292696A3
Improvements in the connection systems applicable to enchufes tomacorrientes (Machine-translation by Google Translate, not legally binding)
ES290528A3
Improvements switches limiting currents of type of lever free trip (Machine-translation by Google Translate, not legally binding)
ES279974A1
Improvements in the low voltage tripolar fuse holders (Machine-translation by Google Translate, not legally binding)
ES263186A1
Improvements in the construction of splings and simple or multiple derivation for electrical power cables (Machine-translation by Google Translate, not legally binding)
ES262558A3
Improvements in electrical circuit breakdown indicator systems (Machine-translation by Google Translate, not legally binding)
