9 Scientific and laboratory apparatus and instruments, namely, vacuum chambers and replacement parts therefor included in this class; vacuum ovens and drying ovens for scientific and laboratory use and replacement parts therefor included in this class; laboratory apparatus and instruments for extracting plant extracts and essential oils; laboratory apparatus and instruments, namely, vacuum chambers, for degassing chemicals, resins silicone, and polymers; vacuum chamber apparatus, namely, vacuum chambers for degassing chemicals, resins silicone and polymers; vacuum gauges, namely, gauges for measuring pressure; pressure gauges; electric heating pads for heating vacuum chambers; pressure relief valves for use with vacuum chambers and vacuum pumps; distillation apparatus for scientific purposes; drying ovens for laboratory use; laboratory apparatus and instruments, namely, homogenizers; laboratory filters; laboratory glassware; scales; forced air ovens for scientific and laboratory use