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| Patents for Graham Mfg. Co. | |||||
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| Number | Title | Classification(s) | |||
| 702,011 | Device for Removing Broken Taps | 470/198, 81/176.15 | |||
| 930,662 | Knurling tool for turret lathe | 125/37, 72/126, 72/703 | |||