Binoculars; Microscopes; Telescopes; Biological microscopes; Cover glass for microscope slides; Earphones and headphones; Electronic apparatus, namely, electronic display boards, plasma display boards, electronic display screens; Laboratory apparatus and instruments, namely, homogenizers; Laboratory equipment, namely, microscope slides; Laboratory equipment, namely, plastic, rubber and elastomer closures, seals and stoppers for laboratory bottles; Magnifying lenses; Microscope illuminating de...