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| Patents for W. H. Isaacs | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 168,135 | Sep. 28, 1875 | O.C. Burdict | Machine For Forging Wrench-Bar Heads | |
 | 173,234 | Feb. 08, 1876 | W.H. Ogilvie | Improvement in Machines for Grinding [Insertable] Saw-Teeth | |