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| All Patents in class 29/893.34 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 578,731 | Mar. 16, 1897 | F.L. Eberhardt, U. Eberhardt | Wrought Metal Gear Wheel and Mechanism for Making Same | ||
 | 659,522 | Oct. 09, 1900 | Z.T. Furbish | Apparatus for Making Ribbed Sleeves or Wheels | |
| 1,053,471 | Feb. 18, 1913 | J.R. Blakeslee | Forging Mechanism | ||