| All Patents in class 73 |
Patents 1 -
15
of 661
      |
| Number | Date | Patentee | Title | Type |
| 4,371X | Mar. 24, 1826 | W. Barker | Gauge sight for steam boilers | stationary boilers |
| 8,317X | Jul. 14, 1834 | J.D. Woodside | Pumps, gauge | pumps |
| 287 | Jul. 19, 1837 | J. Ericsson, F.B. Ogden | Sounding instrument for ascertaining the depth of water in seas, rivers, &c. | nautical apparatus |
| 810 | Jun. 27, 1838 | A. Amsden | Hydrostatic Scale | |
| 4,972 | Feb. 20, 1847 | W.H. Baker, H.R. Worthington | Apparatus for gaging the height of water in boilers | steam apparatus |
| 5,552 | May 09, 1848 | P. Stillman | Steam and Vacuum Gage | vacuum and pressure gauges |
| 7,912 | Jan. 21, 1851 | A.A. Wilder | Leeway-indicator | |
| RE205 | Jul. 29, 1851 | P. Stillman | Improvement in Steam and Vacuum Gages | vacuum and pressure gauges |
| 9,163 | Aug. 03, 1852 | E. Bourdon | Pressure-gage | steam pressure gauges |
| 9,236 | Aug. 31, 1852 | W. Hodgson, G.S. Stearns | Governor for steam-engines | steam engine governors |
| 11,223 | Jul. 04, 1854 | W.C. Hibbard | Regulating the motion of steam-engines | steam engines |
| 12,232 | Jan. 16, 1855 | J.S. Barden | Water-meter | water meters |
| 12,934 | May 22, 1855 | J.S. Barden | Water-meter | water meters |
| 13,142 | Jun. 26, 1855 | J. Sykes | Wheelwright-'s guide-mandrel | wheelwright |
| 13,320 | Jul. 24, 1855 | H.R. Worthington | Water-meter | water meters |
