U.S. federal trademark · Serial No. 79250393 · Reg. No. 6060919
Chemical and physical apparatus for the production of pure organochemical combinations for scientific industrial purposes, namely distillation and extractive distillation with counter-flow apparatus being columns equipped with packings and trays, heat exchangers, control and regulation instruments, namely, control valves for pressure, temperature, level and flow of gases and liquids
Solvents for aromatic extractive distillation for industrial and commercial use
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