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| All Patents in class 72/351 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,434,949 | Nov. 07, 1922 | R.W. Glasner | Die Cushion | ||
| 1,861,337 | May 31, 1932 | W. Ernst | Hydraulic Metal Drawing Press | ||
| 1,891,121 | Dec. 13, 1932 | R. Thoreson | Drawing Press or the Like | ||
 | 1,911,385 | May 30, 1933 | R.J. Pardee | Draw press | |