US Patent: 236,119
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| Pencil-sharpening machine
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Patentee:
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| Henry Van Houser (exact or similar names) - Dayton, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 13, 1880 |
| Granted: |
Dec. 28, 1880 |
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Jeff Joslin
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Description: |
| According to the Office Museum website this patent pencil sharpener is not known to have been manufactured. |
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