第五十条修改为：“宣告无效的专利权视为自始即不存在。”

Article 50 is amended as follows: "Any patent right which has been declared invalid shall be deemed to be non-existent from the beginning."

youdao

第五十条修改为：“宣告无效的专利权视为自始即不存在。”

Article 50 is amended as follows: "Any patent right which has been declared invalid shall be deemed to be non-existent from the beginning."

youdao