| All Patents in class 405/85 |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
| | 4,922X | Nov. 10, 1827 | B. Seymour | Mode of retaining and discharging water |
| | 5,288X | Nov. 29, 1828 | J.F. King | Paddle gate for locks of canals |
 | 5,675X | Oct. 13, 1829 | E. Morris | Machine or inclined plane for raising or lowering boats from one level to another on canals |
| | 6,349X | Jan. 25, 1831 | J. Clarke | Self regulating conduit |
| | 7,507X | Apr. 04, 1833 | E. Trumbull | Paddle gate |
| | 9,648X | May 14, 1836 | V. Brown | Canal lock gate |
| | 9,660X | May 14, 1836 | D. Wilkinson | Canal lock |
