U.S. federal trademark · Serial No. 79275556 · Reg. No. 6258644
Heat treatment atmosphere control system for steel heat treating, namely, equipment for controlled gas mixing with an electronic control panel and a flow-train for steering the atmosphere components by respective flow and regulating components, namely, gas flow meters, flow and pressure switches for monitoring and controlling the flow of gases, pressure regulators for use in controlling the flow of gases, solenoid valves, and metering valves for measuring and controlling the flow of gases
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