US Patent: 438,415
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| Watch-maker's polisher
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Patentee:
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| Franklin Hardinge (exact or similar names) - Toronto, ON Canada |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 24, 1890 |
| Granted: |
Oct. 14, 1890 |
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Steve Gosselin
"Vintage Machinery" entry for Hardinge Brothers
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Description: |
| Watch lathe attachment.One of two consecetive Patents issued to Hardinge on this date,the other is a watch makers roller extractor, 438416 |
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