|
US2920240A
|
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Theater lighting control system
|
|
GB811970A
|
|
Improvements in oval beam lens
|
|
US2853599A
|
|
Oval beam lens
|
|
GB684148A
|
|
Improvements in selector switches and their interlocking or association with other switches
|
|
US2594181A
|
|
Selector switch
|
|
US2558964A
|
|
Iris protection apparatus for highintensity spotlights
|
|
US2305015A
|
|
Adjustable support for lamp housings
|
|
US2217485A
|
|
Door latch
|
|
US2133608A
|
|
Color screen control
|
|
US2014573A
|
|
Spotlight and lamp support therefor
|
|
US1991615A
|
|
Disappearing footlight
|
|
US1818718A
|
|
Synchronous control of color screens
|
|
US1875814A
|
|
Color screen control
|
|
US1794777A
|
|
Plug switch
|
|
US1742601A
|
|
Floodlight
|
|
US1818717A
|
|
Music stand
|
|
US1742600A
|
|
Floodlight
|
|
US1742599A
|
|
Footlights
|
|
US1789103A
|
|
Theater light
|
|
US1740463A
|
|
Spotlight
|
