Chinese authority 8282570, 8282577, 8282857 AutoChief C20 propulsion control system Issued by Chinese authority Certificate type Trademark certificate Certificate no NO 8282570, NO 8282577, NO 8282857 Expiration date 5/13/2021 Document file scan copy of Trademark Certificate.pdf Related file(s) tm certificate NO 8282570.pdf tm certificate NO 8282577.pdf tm certificate NO 8282857.pdf