US Patent: 465,783
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| Motor for Coffee Roasters
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Patentees:
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| Edward W. Murphy (exact or similar names) - Albert Lea, Freeborn County, MN |
| William D. Mixter (exact or similar names) - Albert Lea, Freeborn County, MN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 03, 1891 |
| Granted: |
Dec. 22, 1891 |
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Joel Havens
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