Enforcement Act of the Part of Rights In Rem of the Civil Code Article 12

If, before the coming into force of the Rights in Rem part of the Civil Code, a person is entitled to acquire the ownership of a thing in accordance with the provisions of Article 808 or Articles 811 to 814 of the Civil Code, he acquires the ownership of the thing from the date of the coming into force of the Rights in Rem part.
中文原文 民法物權編施行法第12條
民法物權編施行前,依民法第八百零八條或第八百十一條至第八百十四條之規定,取得所有權者,於施行之日,取得其所有權。

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