|
US5172975A
|
|
Light assembly with ventilated housing
|
|
US3633024A
|
|
Lamp retainer structure
|
|
US3543125A
|
|
Electrical system for charging and discharging capacitors
|
|
US3508481A
|
|
Studio lamp with built-in camera
|
|
US3480250A
|
|
Upright stand with adjustable leg span
|
|
US3538324A
|
|
Variable beam spotlamp
|
|
US2430929A
|
|
Arc lamp regulating circuit
|
|
US2396436A
|
|
Arc lamp and method of operating same
|
|
US2307302A
|
|
Lamp house
|
|
US2307301A
|
|
Spot lamp
|
|
US2179776A
|
|
Electrode release for arc lamps
|
|
US2216352A
|
|
Arc lamp and control mechanism therefor
|
|
US2165697A
|
|
Electrode release attachment for arc lamps
|
|
US2174736A
|
|
Electrode release for arc lamps
|
|
US2181174A
|
|
Control for arc lamps
|
|
US2151745A
|
|
Arc lamp and control circuit therefor
|
|
US2173948A
|
|
Resistance unit for spot and flood lamps
|
|
CA815394A
|
|
Variable beam spotlamp
|
