Index of black inventors by state or country of residence 1834-2008
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MSEddie L. Brooks June 22, 1999 5,913,938 Gear reduction assembly Eddie L. Brooks July 27, 2004 6,766,708 Gear ratio multiplier Peter R. Campbell Apr. 1, 1879 213,871 Screw Press Charles T. Christmas Apr. 13, 1880 226,492 Hand Power Attachment for Sewing Machines Charles T. Christmas May 25, 1880 228,036 Baling Press Charles T. Christmas Aug. 17, 1880 231,273 Bale Band Tightener Charles T. Christmas Jan. 10, 1882 252,185 Wire Stretcher Admiral H. McCoy May 2, 1944 2,348,094 Torpedo Arrester or Insulator Sidney D. Redmond June 1, 1943 2,320,986 Mine Sweeper 
Sidney D. Redmond May 2, 1944 2,348,094 Torpedo Arrester or Insulator Joseph L. Russell Nov. 30, 1976 3,995,011 Preparation of Tungsten Hexafluoride from Halogen and Hydrogen Fluoride Benjamin H. Taylor Apr. 23, 1878 202,888 Improve-ment in Rotary Engines Benjamin H. Taylor July 6, 1897 585,798 Slide Valve Peter Walker Feb. 16, 1897 577,153 Machine for Cleaning Seed Cotton Peter Walker Mar. 8, 1898 600,241 Bait Holder Peter Walker May 3, 1910 956,552 Safety Attachments for Elevator Andrew D. Washington May 19, 1903 728,788 Shoe Horn MT William D. Davis Oct. 6, 1896 568,939 Riding Saddle William D. Davis Nov. 30, 1897 594,571 Track Cleaner 
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