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| Patents Granted on 1973-09-11 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,757,638 | Sep. 11, 1973 | J. Martin | Five-Axis Shaper | metal shapers | |
| 3,757,683 | Sep. 11, 1973 | E.O. Engerbretsen, E. Grunewald | Compactor drive chain tensioning apparatus | ||
| 3,757,838 | Sep. 11, 1973 | A. Lee | Device for routing countertop miters | routing machines | |
| 3,758,222 | Sep. 11, 1973 | H.C. Oakes | Drill bit | drill bits | |