Hosley's ship's model measurer, 1851

Theodore Timby's apparatus for raising sunken vessels, 1852

Frederick Sickel's steam steering gear, 1853

Enoch Hidden's porthole, 1853

Fletcher Felter's 1854 paddle wheel

Lieut. John Guest's sounding guard, 1856

George Swartz's propeller, 1857

Joseph Francis's metallic life boat, 1858

Francis Lee's life and treasure buoy, 1858

F. E. Sickels's 1860 mode of steering vessels

Daniel Merritt's crank paddle, 1869

Elisha Barlow's anchor, 1869