Arc discharge lamp with ultraviolet enhanced starting circuit
Arc discharge lamp with ultraviolet radiation starting source
Arc lamp lighting unit with means to prevent prolonged applicati
Arrangement for the ignition of ignitable mixtures
Arrangement in a tunable high frequency transmitter tube
Arrangement in a tunable magnetron
Article for increasing the life expectancy of filament light bul
Asymmetrical bus capacitors
Automatic shut-off device for an electric lamp