Wide-band transistor amplifier system employing impedance mismatch and high frequency peaking
US3365722A
Pivoted antenna element locking mechanism
US3293592A
Electrical coaxial connector
ES310655A1
Antenna for operation with ultraelevated frequency and similar. (Machine-translation by Google Translate, not legally binding)
ES310654A3
Improvements introduced in clamps-electrical connectors, adapted to maintain and establish electrical contact with conductor of transmission lines covered with insulation and similar. (Machine-translation by Google Translate, not legally binding)