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| Patents Granted on 1939-08-15 | |||||
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| Number | Date | Patentee | Title | Type | |
| D116,179 | Aug. 15, 1939 | W.K. Yates, Jr. | Pocket Tool | combination tools | |
| CH-206,489 | Aug. 15, 1939 | . | Device for Turning a Workpiece on Machine Tools | ||
| 2,169,484 | Aug. 15, 1939 | J.B. Armitage | Machine Tool Transmission and Control Mechanism | milling machines | |
| 2,169,747 | Aug. 15, 1939 | R.B. Treer | Power press | metalworking presses | |