Electric filament lamps
Electric incandescent lamp
Electric incandescent lamp
Electric incandescent lamp
Electric incandescent lamp
Electric incandescent lamp
Electric incandescent lamp and method of manufacture therefor
Electric incandescent lamp having a looped filament support memb
Electric incandescent lamp having an improved filament support
Electric incandescent lamp having discharge arc conductor and di
Electric incandescent lamp with support structure for a planar f
Electric lamp having a coiled incandescent filament and filament
Electric lamp having a push-in filament insert for filament moun
Electric lamp with bridge support member providing both compress
Electric lamp with reinforced filament structure
Electric lamp with stress relieving means
Electron discharge device
Electron tube having linear damper
Elongate tubular incandescent lamp with filament shorting bars