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| Patents Granted on 1851-06-03 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,129 | Jun. 03, 1851 | H.S. Cook | Comb-cutting machine | comb making machines | |
| 8,137 | Jun. 03, 1851 | H. Bessemer | Machines for Expressing Cane Juice | sugar cane apparatus | |
| 8,141 | Jun. 03, 1851 | L.S. Chichester | Carving-machine | carving machines | |