US Patent: D19,412
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| Design For an Insertible Jaw For Wrenches
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Patentee:
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| Bernard Donohue (exact or similar names) - Yonkers, NY |
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Patent Dates:
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| Applied: |
Oct. 15, 1889 |
| Granted: |
Nov. 12, 1889 |
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Patent Pictures:
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Bernard Donohue Pat. Nov. 12, 1889 |
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Stan Schulz
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Description: |
| The design for a gripping face features diagonal serrations on the gripping surface, and a straight-sided angular shank on the lower portion. The jaw piece was used in late production versions of Donohue's combination nut and pipe wrench marketed by Tower & Lyon of New York City.
See patent nos.195,589, 238,369, and 268,784 for the evolution of this wrench's features. Donohue's other Nov. 12, 1889 patent (no. 414,799) was not used. |
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