US Patent: 258,225
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| Calipers
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Patentee:
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| Henry Foerster (exact or similar names) - Newark, NJ |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 02, 1881 |
| Granted: |
May 23, 1882 |
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Ralph Brendler
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Description: |
| This is a design for firm-joint calipers that uses a tapered eyelet instead of the usual rivet. |
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