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| Patents Granted on 1951-02-20 | |||||
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| Number | Date | Patentee | Title | Type | |
| D162,025 | Feb. 20, 1951 | C.R. Hatch, Jr. | Pipe Wrench | pipe wrenches | |
| 2,542,169 | Feb. 20, 1951 | . | Saddle Miter Square | ||
| 2,542,241 | Feb. 20, 1951 | J.A. Fors | Ratchet Mechanism | ratchet wrenches | |
| 2,542,368 | Feb. 20, 1951 | N.A. Smith | driftpin | ||
| 2,542,421 | Feb. 20, 1951 | A.J. McClelland | Machine Tool | turret lathes | |
| 2,542,515 | Feb. 20, 1951 | T.F. Harvey | Intermittent movement mechanism | electric motor making | |