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| Patents Granted on 1953-03-31 | |||||
| Number | Date | Patentee | Title | Type | |
| 2,632,981 | Mar. 31, 1953 | L. Kniep, Jr. | Grinding and polishing machine | belt sanders | |
| 2,633,061 | Mar. 31, 1953 | H. Fritschi, E.G. Roehm | Milling Machine Control Mechanism | milling machines | |
| 2,633,328 | Mar. 31, 1953 | B.E. Wallace | Winch | hoists, winches, come-alongs | |