US Patent: 312,956
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| Stamp-mill
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Patentee:
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| Henry Bolthoff (exact or similar names) - Denver, CO |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 25, 1883 |
| Granted: |
Feb. 24, 1885 |
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Jeff Joslin
Vintage Machinery entry for Hendrie & Bolthoff Mfg. & Supply Co.
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Description: |
| Of interest because the firm of Hendrie & Bolthoff Mfg. & Supply Co. sold woodworking machinery in addition to mining machinery; it is not known whether they manufactured any of their own woodworking machines. |
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