The invention is a base unit that may be used in combination with beverage container holders. The base unit is connected to the beverage container holder by a press or friction fit, or by an adhesive, so that different theme beverage container holders may be used with the same base. The base may include...http://www.google.fr/patents/US5990790?utm_source=gb-gplus-shareBrevet US5990790 - Interchangeable base for beverage container holder
Interchangeable base for beverage container holder
