154990 ⎘
Screens not covered by groups , , or using crossed laminae or strips, e.g. grid-shaped louvers ; using lattices or honeycombs adjustable
COATING FOR A FRAMING SHUTTER FOR A LUMINAIRE
#2LOUVRED LIGHTING FIXTURE
#3Indoor Sunshine Simulation Apparatus and Methods
#4Light containment and control device
#5Flexible light control grid with collapsible frame
#6Light output reducing shutter system