1892-08-23 On this date in 1892, Oscar E Brown was an African American who patented an improved double or compound horseshoe, which consisted of; an upper shoe secured to the hoof of the animal and a lower auxiliary shoe irremovably attached to the upper shoe. The object of invention was the provision of a secure and reliable lock for fastening the lower shoe to the upper shoe, which will permit the lower shoe to be readily applied and removed from the upper shoe whenever it becomes necessary to renew the lower shoe or resharpen it calks. U.S. Patent 481,271 Reference: U.S. Patent and Trademark Office Mail Stop USPTO Contact Center P.O. Box 1450 Alexandria, VA 22313
Posted on: Sat, 23 Aug 2014 10:34:38 +0000
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