Air analysis apparatus; Disposable reusable dispenser syringes for laboratory use; Eyeglasses; Furniture especially made for laboratories; Hand-operated laboratory tools for manipulating laboratory samples; Laboratory apparatus and instruments for the exchange of substances and heat; Laboratory centrifuges; Laboratory equipment and supplies, namely, centrifuge tubes; Laboratory equipment, namely, pipette racks; Laboratory equipment, namely, plastic, rubber and elastomer closures, seals and st...