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| Patents for Azariah Yeldon Pearl | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 505,844 | Oct. 03, 1893 | A.Y. Pearl | Auger | |
 | 565,500 | Aug. 11, 1896 | A.Y. Pearl | Auger | |
 | 606,575 | Jun. 28, 1898 | A.Y. Pearl | Auger | |
| CA-88,065 | Jun. 28, 1904 | A.Y. Pearl | Auger | ||
 | 788,941 | May 02, 1905 | A.Y. Pearl | Auger | |
 | 845,191 | Feb. 26, 1907 | A.Y. Pearl | Boring-machine | |