GB Patent: GB-187,300,217
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| Applying Motive Power to Sewing Machines, Lathes, &c.
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Patentees:
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| Oscar J. Backus (exact or similar names) - San Francisco, San Francisco County, CA |
| Albert Franklin Sawyer (exact or similar names) - San Francisco, San Francisco County, CA |
| Abram Meyer Loryea (exact or similar names) - East Portland, Multnomah County, OR |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 18, 1873 |
| Granted: |
Mar. 07, 1873 |
Espacenet patent
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Joel Havens
"Vintage Machinery" entry for Backus Water Motor Co.
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