Automatic fail-safe mechanism-operated cell switch for...

Automatic fault current limiting switch with reclosing time...

Automatic fault protection system for power recovery control

Automatic flashover protection for locomotive traction motors

Automatic flashover protection for locomotive traction motors

Automatic gear-change apparatus for road, rail or other...

Automatic gear-changing apparatus for road, rail or other...

Automatic generator synchronizing and connecting system and...

Automatic ground fault protection for an electric power system

Automatic grounding switch

Automatic headlight control

Automatic impedance--changing circuit

Automatic lead making apparatus

Automatic linear compression circuit

Automatic means for bringing generator on the line

Automatic motor-generator charger

Automatic on/off circuit with time delay

Automatic paralleling system

Automatic paralleling system

Automatic paralleling system