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| Patents for H. E. Bell | |||||
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| Number | Date | Patentee | Title | Type | |
| 822,449 | Jun. 05, 1906 | A. Harrold | The Harrold feedworks mechanism for sawmill carriages | ||
| 848,548 | Mar. 26, 1907 | A. Harrold | Guide for saws | sawmill accessories | |