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record number: 200482
3 p.
  • RG 59 (Dept. of State): MLR (M 179, Reel 47)
  • Enclosures: (1) 28 Feb. 1820. Washington: Patent Office. William Thornton to Peregrin Williamson; (2) 14 March 1820. Patent Office. William Peregrin to William Thornton.

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