US Patent: 136,830
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Improvement in brace-drills
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Patentee:
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George Gibbs (exact or similar names) - Canton, OH |
USPTO Classifications: |
81/36 |
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Patent Dates:
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Granted: |
Mar. 18, 1873 |
Patent Pictures:
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1 | 2
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Kirk Eppler
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Description: |
This invention is an addition to an ordinary brace to provide gearing. It required a second set of hands to hold the accessory while the first set of hands operated the brace. The one known example, pictured in the second photo, is equipped with a chuck made by Millers Falls Co. It is not known if this was manufactured in any quantity, and if so, by whom. |
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