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US Patent: 3,986
Screw Pile
Method of Obtaining Foundations and of Mooring Ships, Buoys, and Other Floating Bodies
Patentee:
Alexander Mitchell (exact or similar names) - Belfast, Ireland

USPTO Classifications:
52/157

Tool Categories:
transportation : boats and ships

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Jason R. Garrett
Thomas Mitchell
Patent Dates:
Granted: Apr. 01, 1845

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
Description:
G. M. P. Lewis - patent attorney

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