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| All Patents in class 76/77 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,691,311 | Oct. 12, 1954 | H.K. Robinson, H.O. Berry | Saw sharpening machine | saw sharpening machines | |
| 2,779,216 | Jan. 29, 1957 | D.B. Chenoweth | Power driven saw setter | tool making machines | |
| 2,986,047 | May 30, 1961 | D.J. McConnell | Feeding Mechanism for Saw Sharpening Machine | sharpening machines | |
| 5,048,236 | Sep. 17, 1991 | C.C. Williams | Saw Blade Tooth Grinder for Saws | saw sharpening machines | |