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| All Patents in class 29/893.32 | |||||
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| Number | Date | Patentee | Title | Type | |
| 618,978 | Feb. 07, 1899 | O.J. Beale | Machine for generating gearing | gear making machines | |
| 2,906,147 | Sep. 29, 1959 | H. Pelphrey | Roll for Forming Toothed Elements | gear making machines | |