US Patent: 974,896
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Patentee:
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| John A. Leland (exact or similar names) - Montague, MA |
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Patent Dates:
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| Applied: |
Jul. 14, 1909 |
| Granted: |
Nov. 08, 1910 |
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Patent Pictures:
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Jeff Joslin (dm)
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Description: |
| Leland references his earlier patent 912582, noting that the principle means of gripping straight (round) shanks and tapered shanks is the same in this patent. The primary focus of this patent has to do with the internal configuration of the jaws. |
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