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| Patents for Oliver Imray | |||||
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| Picture | Number | Date | Patentee | Title | |
 | GB-189,110,707 | Jun. 23, 1891 | C.F. Donahue, O. Imray | Pipe Wrench | |
 | 568,692 | Sep. 29, 1896 | M.D. Martindale | Wrench For Turning Pipes or Other Round Objects | |