U.S. federal trademark · Serial No. 50050958
Downloadable computer software for operating combustion control system of heating systems for residential and commercial buildings; Combustion gas analyzers and gas analyzers, not for medical purposes; Measuring devices in the nature of temperature and pressure analyzers; Apparatus for analyzing boiler combustion data; Automatic combustion control machines and instruments; Oxygen sensors for combustion control of residential heating systems; Electric, electronic, or electrochemical oxygen monitors and sensors for environmental use
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