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US Patent: 7,225X
Improvement in the mode of constructing steelyard-balances
Balance steelyard
Patentees:
Thaddeus Fairbanks (exact or similar names) - St. Johnsbury, VT
Erastus Fairbanks (exact or similar names) - St. Johnsbury, VT

USPTO Classifications:
177/171

Tool Categories:
trade specific : steel maker

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Sep. 22, 1832

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. Only the patent drawing is available. This patent is in the database for reference only.

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