other marketing solutions justia patents electric lamp and discharge devices: consumable electrodes patents (class ) electric lamp and discharge devices: consumable electrodes patents (class ) automatic substitution of discharge device, electrode or lamp (class / ) with current-shifting switch (class...
field and armature (class / ) multiple-armature dynamo (class / ) electric control (class / ) excitation dynamo (class / ) traction demand starters (class / r) starting and generating dynamo (class / ) electric-starting motor with generator (class / r) electric-starting motor (class / r) rotary field...