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| Patents for William Allen | |||||
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| Number | Date | Patentee | Title | Type | |
| 75,720 | Mar. 24, 1868 | W. Allen | Improvement in mowing-machines | ||
| 145,537 | Dec. 16, 1873 | C. Stewart | Improvement in Mallets for Driving Tubes, &c. | mallets | |