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| Patents Granted on 1969-03-11 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,431,799 | Mar. 11, 1969 | J.R. Bashor | Chip breaker | multiple spindle drilling heads | |
| 3,432,420 | Mar. 11, 1969 | P. Pan | Electrolytic Cell Assemblies | electrolysis apparatus | |
| 3,432,744 | Mar. 11, 1969 | L.J. Lauler, M.T. Thorsson | Control Circuits for Card Operated Batcher | electronic circuitry and apparatus | |