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US Patent: 810
Hydrostatic Scale
Patentee:
Amory Amsden (exact or similar names) - Rochester, NY

USPTO Classifications:
73/322

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
E. B. Wheeler
Samuel Thrasher
Patent Dates:
Granted: Jun. 27, 1838

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
Description:
This device was used on the Erie Canal to determine the weight of canal boats.

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