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| Patents Granted on 1984-04-24 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,443,928 | Apr. 24, 1984 | E.J. Kielma | Multiple-spindle Tool Changer | tool changers and storage mechanisms | |
| 4,444,348 | Apr. 24, 1984 | A.M. Campbell | Compensating Nail Chuck | nailing machines | |