近来,许多读者向本刊提了一些专利方面的问题,其中浙江省机械科学研究所的金民常同志提的三个问题,具有一定的普遍性。为此,我们特请国家专利局顾问汤宗舜同志作了解答。现将问题及解答一并刊登于下。 Recently, many readers have asked some questions about this patent. Among them, three issues raised by Comrade Jin Minchang of the Institute of Mechanical Science and Technology of Zhejiang Province have a certain degree of universality. For this reason, we specially asked Comrade Tang Zongshun, Counselor of the State Patent Office, to give a reply. The questions and answers are now published in the next.