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| Patents for Otto Ebert | |||||
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| Picture | Number | Date | Patentee | Title | |
| 864,294 | Aug. 27, 1907 | O. Ebert | Rotary Engine | ||
 | 1,165,859 | Dec. 28, 1915 | O. Ebert | Hollow Mill | |
 | 1,227,533 | May 22, 1917 | O. Ebert | Hollow Mill | |