競爭自由原則 模仿自由原則 補充成果保護 競爭特質 周知表徵 著名表徵 仿冒 智慧財產權 新式樣 不正競爭 The principle of free competition The principle of free copying The doctrine of misappropriation Competitive characteristics Acquired-distinctiveness signs Famous signs Passing off Intellectual property rights Industrial design Unfair competition