US Patent: RE2,869
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| Improvement in the Manufacture of Metallic Squares
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Patentee:
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| Samuel Darling (exact or similar names) - Bangor, ME |
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Patent Dates:
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| Granted: |
Feb. 18, 1868 |
| Reissue Information: |
| Reissue of 18,327 (Oct. 06, 1857) |
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Russ Allen.
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Description: |
| Darling expands on his original patent 18327 which referenced an intent to patent the idea and process of hardening the edges of the squares of tongues and does so in this reissue of his patent. |
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