Seventeenth-century mentor spring in Lisbon Carriage Museum The earliest recognized leaf springs started appearing on carriages in France during the mid-seventeenth century in the form of The 2-element elbow spring (as the illustrated case in point from Lisbon), and afterwards migrated to England and Germany,[six] showing up on the carriages https://chillingdewaxingunit79123.tblogz.com/the-5-second-trick-for-axle-assembly-48902949