US Patent: 924,992
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| Dynamo Electric Machine
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Patentee:
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| Dugald C. Jackson (exact or similar names) - Madison, Dane County, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 23, 1905 |
| Granted: |
Jun. 15, 1909 |
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Joel Havens
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Description: |
| Original application filed 11 Jan., 1904. Divided and this application filed 23 Oct., 1905. |
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