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| Patents for John Boyle & Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 541,262 | Jun. 18, 1895 | J. Boyle | Machine for buffing or shaving hides or skins | |
 | 605,627 | Jun. 14, 1898 | J. Boyle | Knife-sharpening mechanism for leather-shaving machines | |
 | 666,461 | Jan. 22, 1901 | J. Boyle | Leather-working machine | |