These occasions prompted the principal creation of chromium-containing steel by J. Baur of the Chrome Steel Works of Brooklyn for the development of scaffolds. A U.S. Patent for the item was given in 1869.:2261 This was followed with acknowledgment of the erosion opposition of chromium amalgams by Englishmen John T. Woods and John Clark, who noted scopes of chromium from 5–30%, with added tungsten and "medium carbon". They sought after the business estimation of the advancement by means of a British patent for "Climate Resistant Alloys
