Seventeenth-century coach spring in Lisbon Carriage Museum The earliest recognised leaf springs commenced showing up on carriages in France in the mid-seventeenth century in the shape of The 2-element elbow spring (since the illustrated illustration from Lisbon), and later on migrated to England and Germany,[6] showing up over the carriages https://hydrotreatingunit67801.fireblogz.com/66710144/the-smart-trick-of-leaf-spring-that-no-one-is-discussing