U.S. federal trademark · Serial No. 85978987 · Reg. No. 4372707
emissions control testing, namely, testing of boiler emissions for the presence of pollutants; pollution and environmental control services, namely, design of air pollution and emissions control systems for others
[ installation, maintenance, and repair of pollution control equipment; building construction and repair services related to pollution control systems ]
treatment of materials for pollution control, namely, application of additives and other treatment of boilers, coal, carbon, and flue gas
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