US Patent: 1,574,741
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| Turret-tool Holder
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Patentees:
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| Herbert B. Day, deceased (Estate of) (exact or similar names) - Detroit, Wayne County, MI |
| Eva Alexander, Administratrix (exact or similar names) - Detroit, Wayne County, MI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 24, 1924 |
| Granted: |
Mar. 02, 1926 |
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Joel Havens
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