Patent Act Article 129

Unity; design for a set of articlesAn application for a design patent shall relate to one design.Two or more articles belonging to the same class and are customarily sold or used together may be filed as one design.A patent application for design shall indicate the article to which the design is applied.
中文原文 專利法第129條
申請設計專利,應就每一設計提出申請。
二個以上之物品,屬於同一類別,且習慣上以成組物品販賣或使用者,得以一設計提出申請。
申請設計專利,應指定所施予之物品。

English translation for reference only; the Chinese text prevails. Not legal advice.