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US3342988A
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Horizontally mounted luminaire with lowering device
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US3053979A
|
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Hood for disconnecting and lowering hanger
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US2923515A
|
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Lowering hanger with mechanical advantage
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GB735080A
|
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Mounting for lighting fixtures
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US2728848A
|
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Mounting for lighting fixtures
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US2773975A
|
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Motor driven lamp hanger
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US2798680A
|
|
Lowering hanger with constant tension
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US2745688A
|
|
Solid adjustable angle fitting
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US2663536A
|
|
Gravity suspension hanger
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US2666909A
|
|
Multiple contact lamp hanger
|
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US2721982A
|
|
Multiple contact lamp hanger
|
|
US2609170A
|
|
Motor-driven lamp hanger
|
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US2618454A
|
|
Lamp guiding and mounting means
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FR913558A
|
|
Multiple contact lamp suspension device
|
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US2564328A
|
|
Overhead mounting for tubular lighting fixtures
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US2403355A
|
|
Lamp supporting means
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US2377872A
|
|
Multiple contact lamp hanger
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US2377871A
|
|
Lamp hanger stem and guide
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US2164846A
|
|
Mounting device
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FR460657A
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Lamp suspension for high voltage series electric lighting
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