IC 011. US 013 021 023 031 034. G & S: Ventilation apparatus for industrial use, namely, isolation glove boxes for containing and handling air sensitive compounds and toxic substances; inert gas purification units for the removal of water, oxygen, nitrogen, and other contaminants from an inert gas and from laboratory and industrial containment systems; evaporators for chemical processing. FIRST USE: 19941130. FIRST USE IN COMMERCE: 19941130
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