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| Patents Granted on 1961-03-28 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,976,650 | Mar. 28, 1961 | B.H. Steinhard | Machine Tool Workpiece Loading System | centerless grinders | |
| 2,976,885 | Mar. 28, 1961 | R.P. Kirkup, G.H. Garraway | Fuel Control Valves | stationary boilers | |
| 2,976,984 | Mar. 28, 1961 | A.D. Moncrieff | Automatic Conveyor for Gear Finishing Machines | workpiece changers and storage mechanisms | |