Biological microscopes; Biomicroscopes; Lenses for microscopes; Microscope condensers; Microscope illuminating devices; Microscope objectives; Microscopes; Microscopes and parts thereof; Microscopes and their parts; Microscopes, including stereomicroscopes; Biological microscopes; Electron microscopes; Laboratory equipment, namely, microscope slides; Lenses for microscopes; Metallurgical microscopes; Operating microscope stands; Optical condensers; Polarizing microscopes; Prisms; Reflectors f...