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Patent for Anti-Gravity Shoes
Patent for Anti-Gravity Shoes 10/26/1993
Letter from the Attorney General to Secretary of the Interior Regarding Patent Applications by Slaves
Letter from the Attorney General to Secretary of the Interior Regarding Patent Applications by Slaves 6/20/1858
Marjorie S. Joyner’s Patent Drawings for a Permanent Wave Machine
Marjorie S. Joyner’s Patent Drawings for a Permanent Wave Machine 5/16/1928
Marjorie S. Joyner’s Petition for a Patent Application for a Permanent Wave Machine
Marjorie S. Joyner’s Petition for a Patent Application for a Permanent Wave Machine 5/16/1928
Patent for Improvement to Barbed Wire
Patent for Improvement to Barbed Wire 11/24/1874
Patent Drawing for the Duryea Road Vehicle
Patent Drawing for the Duryea Road Vehicle 6/11/1895
Wilbur and Orville Wright
Wilbur and Orville Wright's Oath to Accompany the Patent for an "Improvement in Flying Machines" 3/19/1903
Patent Drawing for a Flying Machine
Patent Drawing for a Flying Machine 4/15/1913
Patent Drawing for Bert Kennedy
Patent Drawing for Bert Kennedy's Basket Ball Goal 1/13/1925
Patent Drawing for a Propeller
Patent Drawing for a Propeller 7/4/1905
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