US Patent: RE4,538
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Process for Making Articles of Steel etc.
Improvements in the Manufacture of Edge Tools
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Patentee:
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| Samuel W. Collins (deceased) (exact or similar names) - Collinsville, CT |
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Patent Dates:
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| Granted: |
Aug. 29, 1871 |
| Reissue Information: |
| Reissue of 30,668 (Nov. 20, 1860) |
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Patent Pictures:
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Collins Company Edge Tool Casting Process patent Aug. 29, 1871 |
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Stan Schulz
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Description: |
| Division of process patent for making edge and striking tools from mixed iron and steel castings. See original patent (no. 30,668) for more information.
Process patent used, along with parallel division (no. RE4,537) to produce Collins axes, etc. |
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