US Patent: 81,769
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Improvement in drills
Drill
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Patentee:
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| Frank Glasser (exact or similar names) - Mystic Bridge, CT |
| USPTO Classifications: |
| 81/34 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Sep. 01, 1868 |
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Patent Pictures:
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Glasser 81,769 |
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George Langford
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Description: |
| A breast drill with double pinions. The design allows for continuous motion operation or use as a ratchet drill. When you view the patent drawing you may understand the value of patent 80,812. |
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