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| All Patents in class 310/17 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 2,346,474 | Apr. 11, 1944 | M. de la Torre | Engraving tool | |
 | 2,764,703 | Sep. 25, 1956 | N. Anton | Vibratory tools | |
 | 2,786,950 | Mar. 26, 1957 | T.F. Carmichael, E.G. Sturgeon | Vibratory power tool | |