US Patent: 4,419X
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Improvement on Calvin Merrill's horizontal spinner
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Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Granted: |
May 02, 1826 |
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Joel Havens
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Description: |
This patent is an improvement on patent#3900X.
Only about 2000 of the almost 10000 X-patent documents were recovered.
Because of the Patent Office fire in Dec. 1836, little is known about this patent. There are no patent drawings available. This patent is in the database for reference only. |
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