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US Patent: 448X
Machine for Deepening Channels
Patentee:
Matthew Barney (exact or similar names) - Nantucket, Nantucket County, MA

USPTO Classifications:

Tool Categories:
construction machines : dredges

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: May 04, 1803

Patent Pictures:
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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. There are no patent drawings available. This patent is in the database for reference only.

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