v Sports Inc.Convertible strollerUS5318318 *4 Ago 19937 Jun 1994Tri Industries, Inc.Convertible infant stroller and trailerUS5344171 *4 Ene 19936 Sep 1994Garforth Bles TimothyWheeled vehicle for carriage of children convertible between jogging and bicycle trailer configurationsUS5354083 *18 Dic 199011 Oct 1994Qingshan LiuDrive system for muscle-powered equipment and vehicles, in particular bicycle