[ Magnets and superconducting magnets; cryogenic apparatus and instruments for laboratory use, namely, cryostats; ] apparatus and instruments for storing and handling cryogens, namely, open measuring buckets, float gauges, adaptors, laboratory storage tubes, glass transfer tubes for scientific purposes; flow regulators for scientific use; control valves for regulating the flow of gases and liquids, meters for measuring the flow of gases and liquids, controlled volume pumps, laboratory filters...