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All Patents in class 76/43 | |||||
Number | Date | Patentee | Title | Type | |
3,304,811 | Feb. 21, 1967 | R.H. De Witt | Hand saw grinder | saw sharpening machines | |
5,048,236 | Sep. 17, 1991 | C.C. Williams | Saw Blade Tooth Grinder for Saws | saw sharpening machines |