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| All Patents in class 464/138 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 954,977 | Apr. 12, 1910 | J.W. Lambert | Friction driving mechanism | |
 | 1,242,906 | Oct. 16, 1917 | B.F. Augustine | Shaft Coupling | |
| 1,400,063 | Dec. 13, 1921 | T. Hinton | Tool Holder | ||