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| Patents for Wallace F. Mitchell | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 2,391,183 | Dec. 18, 1945 | W.F. Mitchell | Centering means for boring machines | |
 | 2,441,716 | May 18, 1948 | W.F. Mitchell | Micrometer Setting Device for Boring Machines | |
 | 3,022,838 | Feb. 27, 1962 | W.F. Mitchell | Portable hammer | |
 | 3,062,107 | Nov. 06, 1962 | W.F. Mitchell | Troweling machine | |