US Patent: 4,992X
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| Machine for Junking Ivory by Steam
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| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Feb. 09, 1828 |
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Patent Pictures:
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Joel Havens
Patent 4992X
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Description: |
| Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. Only the patent drawing is available. This patent is in the database for reference only.
This is a stream powered saw for making ivory combs. |
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