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| Patents for William Holdsworth | |||||
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| Number | Date | Patentee | Title | Type | |
| 169,265 | Oct. 26, 1875 | W. Holdsworth | Improvement in tire-upsetting machines | tire shrinkers | |
| 221,066 | Oct. 28, 1879 | W. Holdsworth | Improvement in tire-upsetting machines | tire shrinkers | |