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| Patents for W. H. Covell | |||||
| Number | Date | Patentee | Title | Type | |
| 256,464 | Apr. 18, 1882 | F.M. Covell | Machine for sawing and grooving shakes | shingle machines | |
| 647,532 | Apr. 17, 1900 | D.E. Sharp | Fruit Coring and Stemming Implement | vegetable cutters and slicers | |