79269183
Aug 26, 2019
Objectives [lenses] [optics]; optical lanterns; optical lenses; magnifying glasses [optics]; mirrors; prisms [optics]; optical apparatus and instruments; optical glass; spectroscopes; optical condensers
Electrical and Scientific ApparatusStage lamps and lanterns; lamp glasses; light diffusers; light-emitting diodes [LED] lighting apparatus; lamp reflectors; safety lamps
Environmental Control Apparatus