US Patent: 168,862
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| Improvement in boring-machines
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Patentees:
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| Henry C. Tyler (exact or similar names) - Deep River, CT |
| William H. McNeil (exact or similar names) - Lancaster, MA |
| Moses G. Wilder (exact or similar names) - Meriden, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 05, 1875 |
| Granted: |
Oct. 19, 1875 |
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Jeff Joslin
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Description: |
| This machine is "intended for boring the key-boards and key-board frames of piano-fortes and analogous keyed instruments. In these there is required a series of holes in a peculiarly-curved line, which line varies in different kinds and makes of pianos. There is also required a straight line of holes." |
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