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| Patents Granted on 1830-07-17 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,082X | Jul. 17, 1830 | J. Stroop | Stamp for malleable metal | ||
| 6,083X | Jul. 17, 1830 | G. Stoudinger | Steel rolling-mill for carriage springs | steel maker | |