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| All Patents in class 416/6 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 7,537X | Apr. 16, 1833 | A. Dingley, I. Savage | Tide Current Water Wheel | ||
| 403,579 | May 21, 1889 | E.J. Delaurier | Apparatus for Utilizing the Power of Water | ||