17th-century coach spring in Lisbon Carriage Museum The earliest recognised leaf springs began showing up on carriages in France inside the mid-17th century in the shape of The 2-section elbow spring (because the illustrated instance from Lisbon), and later on migrated to England and Germany,[six] showing over the carriages of https://wasteengineoilregeneratio02467.popup-blog.com/34454797/the-2-minute-rule-for-windshield-wiper