U.S. federal trademark · Serial No. 74260845 · Reg. No. 1732856
system for producing controlled atmosphere inside a heated chamber consisting of a source of inert gas or inert gas generator, sources of reactant gases, blending equipment for mixing gases, including a cabinet, piping, control, valves, electrical controls, alarms, programmable controls and indicating gages and recorder, all for use in the treatment of metals
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