laboratory centrifuges; [ dosing devices, namely, dispensers for admitting samples into laboratory equipment, namely, vessels, centrifuges, and blood analyzers; suction devices, namely, dispensing pipettes being laboratory instruments; vessel holders for laboratory centrifuges; centrifuge racks for test tubes being parts of laboratory centrifuges; laboratory equipment, namely, test tube racks; centrifuge beakers; temperature controllers for centrifuges and blood analyzers for the purpose of c...