US Patent: 306,783
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| Screw Cutting Die
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Patentee:
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| Albert J. Smart (exact or similar names) - Greenfield, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 08, 1883 |
| Granted: |
Oct. 21, 1884 |
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Patent Pictures:
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Albert J. Smart patent October 21, 1884 |
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Stan Schulz
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Description: |
| The perimeter groove is to insure alignment of the die within the stock. The remainder of the patent substantially repeats Smart's Aug. 5, 1884 patent (no. 303,060). |
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