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| All Patents in class 114/47 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 2,705X | Dec. 13, 1816 | J. Adamson | Floating dry dock | |
| 4,521X | Aug. 17, 1826 | J. Floyd | Floating dry dock | ||
| 6,116X | Oct. 01, 1830 | T. Cunningham | Floating graving dock (to clean the underwater parts of ships) | ||
| 8,782X | Apr. 22, 1835 | J. Hawes | Floating dry docks | ||