Iver Johnson introduced the distinctive Truss Bridge frame in America in 1901. The patent lasted for 14 years, after which other US companies brought out their own similar designs, usually described as an Arch Bar.
World champion racing cyclist Major Taylor rode Iver Johnson bicycles. When he raced in France in the early 1900s, he used an Iver Johnson Truss Bridge, and the style caught on there. Labor became the French license holder for this design, and various French companies made their own versions until the late 1920s.