Seventeenth-century coach spring in Lisbon Carriage Museum The earliest recognized leaf springs commenced appearing on carriages in France in the mid-17th century in the shape of The 2-aspect elbow spring (since the illustrated illustration from Lisbon), and later on migrated to England and Germany,[six] appearing within the carriages of the https://zanevndth.blogocial.com/the-smart-trick-of-hand-winch-that-no-one-is-discussing-71172244