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You searched for: “machines; and patent rights”
Results 1-4 of 4 sorted by date (ascending)
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1Thomas Jefferson to Thomas Cooper, 25 August 1814 (Jefferson Papers)
machines; and patent rights [index entry] 
2Thomas Jefferson to Charles Willson Peale, 13 June 1815 (Jefferson Papers)
machines; and patent rights [index entry] 
3Joseph Cabell Breckinridge to Thomas Jefferson, 20 June 1815 (Jefferson Papers)
machines; and patent rights [index entry] 
4John George Baxter to Thomas Jefferson, 1 August 1815 (Jefferson Papers)
machines; and patent rights [index entry]