U.S. Patents

  • Patent 2,064 - Squire Whipple, "Iron-Truss Bridge" (1841)
  • Patent 3,523 - Otis & Caleb Pratt, "Truss-Frame for Bridges" (1844)
  • Patent 8,624 - Wendel Bollman, "Suspension Bridge" (1852)
  • Patent 10,887 - Albert Fink, "Truss Bridge" (1854)
  • Patent 100,185 - Charles Parker, "Truss Bridge" (1870)
  • Patent 529,220 - J.A.L. Waddell, "Truss Bridge" (1894)
  • US34183A - Jacob Linville "Improvement in iron truss-bridges" (1862)
  • US50723A - Jacob Linville & John Piper "Improvement in wrought-iron bridges" (1865)