U.S. federal trademark · Serial No. 79236907 · Reg. No. 6004465
Measuring and signaling instruments and apparatus, namely, apparatus and instruments for detecting, sensing and measuring different sources of indoor air pollution and indoor air temperature and humidity; gas analyzing apparatus; gas measuring detectors, namely, gas sensors for measuring gas concentration; gas concentration measuring sensors; [ alarms for the detection of inflammable gases; ] gas detecting apparatus; gas detecting instruments; all the foregoing designed for demand control ventilation systems and indoor air quality control
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