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| Patents Granted on 1958-01-21 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,820,378 | Jan. 21, 1958 | W.D. Reynolds, G.S. Randles | Self-Aligning Tool Holder | drilling and boring tool holders | |
| 2,820,611 | Jan. 21, 1958 | G.H. Fuehrer | Drilling apparatus | ||
| 2,820,612 | Jan. 21, 1958 | G.H. Fuehrer | Wagon drill | ||