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All Patents in class 238/131 | |||||
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Picture | Number | Date | Patentee | Title | |
74X | Mar. 23, 1794 | J.O. Peerson | Machine for Cutting Nails | ||
![]() | 6,715X | Aug. 23, 1831 | J. Stimpson | Rails or Plates for Railroad Carriage Wheels | |
![]() | RX-23 | Aug. 26, 1840 | J. Stimpson | Improvement in the mode of Forming and Using Cast or Wought Iron Plates or Rails for Railroad-Carriage Wheels to run upon |