| Patents for Frederick Curtis |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 44,611 | Oct. 11, 1864 | S. Darling | Weighing Apparatus | scales and balances |
| 54,731 | May 15, 1866 | L. Huntoon | Compound Steam Engine | steam engines |
| 55,599 | Jun. 19, 1866 | L. Bailey | Improvement in Spokeshaves | spokeshaves |
| 73,415 | Jan. 14, 1868 | H.O. Lothrop | Improvement in steam-engines cut-offs | steam engine governors |
| 75,034 | Mar. 03, 1868 | H.O. Lothrop | Improvement in steam-engines cut-offs | steam engine governors |
| 81,722 | Sep. 01, 1868 | H.H. Adams | Improvement in machines for carving wood | carving machines |
| 107,757 | Sep. 27, 1870 | T.O. Callahan | Improvement in planes | floor planes |
| 120,212 | Oct. 24, 1871 | R. Phillips | Improvement in Carpenters' Planes | combination planes |
| 170,981 | Dec. 14, 1875 | S.R. Bailey | Improvement in wood-bending machinery | wood bending machines |
