ENTREE

microscopes and attachments, namely camera adapters, gear-driven heads, counter-weighted sliding mechanisms for positioning microscopes, floor, wall or ceiling microscope supports with microscope sold as a unit; X-Y units for customizing the positioning of microscopes; optical couplings, namely beam splitters; binocular and monocular viewing attachments; closed-circuit television cameras, 35 millimeter cameras and motor drives therefor; observer view tubes attached to optical couplings, beam splitters and microscopes; flash lamp assemblies; powersupplies; and protector shields