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Patents Granted on 1840-09-10 | |||||
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Number | Date | Patentee | Title | Type | |
AI34 | Sep. 10, 1840 | J.B. Bellemere | Squaring and finishing heads of bolts, nuts, etc. | ||
1,781 | Sep. 10, 1840 | C. Manning | Machine for cutting staves | barrel making machines | |
1,786 | Sep. 10, 1840 | O. Sheldon | Machine for cutting staves | barrel making machines |