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| All Patents in class 76/31 | |||||
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| Number | Date | Patentee | Title | Type | |
| 847,599 | Mar. 19, 1907 | R.S. Brown, C.H. Parks | Means for clamping and filing saws | saw sharpening tools | |
| 867,926 | Oct. 08, 1907 | W.M. Potter | Saw filing device | saw vises | |
| 1,066,340 | Jul. 01, 1913 | J.C. Thomas | Cross-Cut Saw File | files | |
| 1,746,391 | Feb. 11, 1930 | W.E. Gibbs | Metal Working File | ||
| 2,691,311 | Oct. 12, 1954 | H.K. Robinson, H.O. Berry | Saw sharpening machine | saw sharpening machines | |
| 2,741,143 | Apr. 10, 1956 | J. McEwan | Saw sharpener | saw sharpening machines | |