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| All Patents in class 72/175 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,868,341 | Jul. 19, 1932 | A.T. Yates | Bending roll | ||
| 2,088,746 | Aug. 03, 1937 | W.E. Kane | metal bending machine | metal bending machines | |
| 2,197,906 | Apr. 23, 1940 | W.C. Tucker | Method and machine for forming metal | ||
| 2,501,241 | Mar. 21, 1950 | R.M. Shaw, Jr. | Bending Machine | metal bending machines | |
| 2,640,525 | Jun. 02, 1953 | R.G. Tourneau | Bending roll | metal bending machines | |
| 2,838,089 | Jun. 10, 1958 | R.H. Weisner | Roll forming machine with work releasing mechanism | ||