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US Patent: 5,987X
Propellers for moving boats or wagons
Spiral propeller for boats
Patentee:
Josiah Copley (exact or similar names) - Warrior Marsh, PA

USPTO Classifications:

Tool Categories:
propulsion and energy : nautical propulsion apparatus

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: May 22, 1830

Patent Pictures:
USPTO (New site tip)
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Report data errors or omissions to steward Joel Havens
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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