A federal appeals court in Cincinnati heard arguments today on whether Maker’s Mark should have exclusive use of the dripping red wax seal on its bourbon products. Maker’s Mark won an order last year awarding it exclusive rights to the seal.Attorneys for London-based Diageo North America and Casa Cuervo of Mexico argue that wax seals have been used for centuries and Maker’s Mark wasn’t harmed by their use of it on a special bottle of tequila. Kentucky-based Maker’s Mark says it has a valid trademark on the red seal.(Information for this story came from the Associated Press)