US Patent: 596,777
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| Nut Wrench
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Patentee:
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| Aaron Hopkins (exact or similar names) - Lake City, IA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 20, 1897 |
| Granted: |
Jan. 04, 1898 |
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Patent Pictures:
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Aaron Hopkins patent January 4, 1898 |
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Stan Schulz
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Description: |
| Quick adjust with an adjusting sleeve having internal teeth that engage rack teeth on the main shank. A spring catch on the side of the shank holds the adjustment against accidental movement.
John Hedderhorn - patent attorney |
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