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| All Patents in class 269/29 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 2,105,402 | Jan. 11, 1938 | R.L. Brownlee | Hydraulic hold-down for squaring shears | ||
 | 2,240,723 | May 06, 1941 | R.G. Stoehr | Airplane lifting and supporting system | |