The Ming Kwai typewriter is an electromechanical typewriter invented and patented by Lin Yutang. The patent, No. 2613795, was filed on April 17, 1946 by Lin, and was issued by the United States Patent and Trademark Office on October 14, 1952. One of Lin's intentions was to help modernize China. Lin called his design the "Ming Kwai" typewriter and promoted it as "The Only Chinese Typewriter Designed for Everybody's Use". The two Chinese characters "Ming kwai" () means "clear" (as in understandable) and "quick".