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| All Patents in class 405/118 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,430X | Oct. 04, 1834 | A. Addis | Chutes for Dams | dams and weirs | |
| 118,699 | Sep. 05, 1871 | W.H. Doane | Improvement in canals | ||