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| Patents for Henry Sidgreaves | |||||
| Picture | Number | Date | Patentee | Title | |
| 1,876,352 | Sep. 06, 1932 | H. Sidgreaves | Compensating Mechanism for Machine Tools | ||
| 1,876,353 | Sep. 06, 1932 | H. Sidgreaves | Machine Tool Compensating Mechanism | ||