【单选题】• Bell was nearly beaten to the patent office by (), who had independently developed a very similar telephone invention . A. Gray B. Morse C. Charles D. Reis
【简答题】____ granted bythe Patent Office, it becomes the inventor’s property and he or she can keepit, sell it, or assign it.A. Once a patent is B. When a patent C. A patent, once D. A patent, whenever it
is
【判断题】To obtain a patent, a person must prove to the patent office that his or her invention is novel, useful, and not obvious in light of contemporary technology.