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| Patents for John O'Connor | |||||
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| Number | Date | Patentee | Title | Type | |
| 69,577 | Oct. 08, 1867 | J. O'Connor | Lathe Chuck | metal lathe chucks | |
| 630,098 | Aug. 01, 1899 | J. O'Connor | Fastening Handles to Crosscut Saws | saw handles | |