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| All Patents in class 72/170 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 4,475X | Jun. 19, 1826 | W. James | Machine for bending tire for wheels | |
 | 359,509 | Mar. 15, 1887 | H.B. Keiper | Tire Bender | |
| 1,697,896 | Jan. 08, 1929 | A.T. Yates | Process for bending bars and the like | ||
| 2,514,830 | Jul. 11, 1950 | C.J. Bath | Metal Stretching and Contour Forming Machine | ||