17th-century mentor spring in Lisbon Carriage Museum The earliest recognised leaf springs commenced showing up on carriages in France while in the mid-seventeenth century in the form of the two-section elbow spring (as the illustrated case in point from Lisbon), and later on migrated to England and Germany,[6] appearing over https://alternator69134.is-blog.com/42011212/top-latest-five-ltd-urban-news