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| All Patents in class 81/54 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 226,149 | Apr. 06, 1880 | J.H. Alexander | Wrench | |
 | 644,079 | Feb. 27, 1900 | E. Huber | Attachment for tightening nuts | |
 | 1,578,331 | Mar. 30, 1926 | R.D. Litwiller | Thrashing Machine Cylinder Wrench | |
| 1,684,633 | Sep. 18, 1928 | A. Levedahl | Screw or nut driving device for portable power-driven rotary tools | ||
 | 1,699,870 | Jan. 22, 1929 | S.D. Black, A.G. Decker | Portable tool | |
| 2,107,108 | Feb. 01, 1938 | J. De Mooy | Rotary Tool | ||
| 3,460,408 | Aug. 12, 1969 | J.G. Raymond | Depth gauge | ||