Interferometers; Automatic altitude indicators; Laser diodes; Lasers for measuring purposes; Lasers, not for medical purposes; Light emitting diodes (LEDs); Measuring apparatus, namely, laser distance meters; Optical lamps; Radio direction finders; Self-acting focussing projectors

3D printers; Blow torches, namely, gas operated cutting torches; Engraving machines; Laser drilling machines for stone working; Laser engraving machines; Laser engraving machines for woodworking; Laser machines for cutting, marking, and engraving fabric designed for installation directly above embroidery machines; Laser welding machines; Soldering apparatus, electric; Wood carving machines