US Patent: 56,869
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Improvements in Machinery for Swaging the Heads of Screw Augers
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Patentee:
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Russell Jennings (exact or similar names) - Deep River, CT |
USPTO Classifications: |
76/2 |
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Patent Dates:
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Granted: |
Jul. 31, 1866 |
Antedated: |
Jan. 31, 1866 |
Patent Pictures:
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Russ Allen.
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Description: |
This patent is the third that Jennings received for auger machinery to complement his earlier patents, 55,498 and 56,058.
From the 1886 book, "Federal Decisions, Vol. XXV. Patents, Copyright and Trade-marks", Held not abandoned by an experimental use, Jennings v. Pierce, 15 Blatch., 42. |
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