U.S. federal trademark · Serial No. 86824873 · Reg. No. 5196528
Combustion engine emission control systems, namely, emission after-treatment apparatus in the nature of emission control systems comprised primarily of indirect contact heat exchangers and catalytic converters
Combustion engine emission reduction control systems, namely, emission after-treatment apparatus in the nature of catalytic converters not for use in connection with watercraft; Machines for generating electrical power and recovering usable waste heat
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