Overload protector for a telephone set
Overload protector structure of extension cord receptacle
Overtemperature detection device and semiconductor...
Overtemperature detection of power semiconductor components
Overtemperature protective circuit for switching devices
Overtemperature protector for incandescent lamp
Overtemperature protector for incandescent lamp
Overtemperature sensing and signaling circuit
Overvoltage protection plug with fail-safe device having optiona
Overvoltage-protection device