Article 275 of the Treaty of Versailles was concerned with this.
Elections for Balkan states
Civilian air transportation
Wines
Submarine warfare
Wines, specifically regional appellations in respect of wines or spirits. The French inserted this article to restrict the use of the name "Champagne" for sparkling wines to only those produced in the Champagne region of France, reinforcing the Madrid Agreement of 1891 regarding trademarks.