US Patent: 1,861,786
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| Mortising machine
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Patentees:
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| Andrew G. Buchan (exact or similar names) - Grand Rapids, MI |
| Ira J. Lyons (exact or similar names) - Grand Rapids, MI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 09, 1930 |
| Granted: |
Jun. 07, 1932 |
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Jeff Joslin
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Description: |
| "The main objects of this invention are... to provide a machine which is well adapted for the mortising of large timbers such, for example, as are commonly employed in cribs, docks, and heavy framing." |
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