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US Patent: 426,696
Farmer's Level
Patentee:
William M. Washburn (exact or similar names) - Gibsland, Bienville Parish, LA

USPTO Classifications:
33/333, 33/388

Tool Categories:
layout tools : levels : clinometers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Oct. 09, 1888
Granted: Apr. 29, 1890

Patent Pictures:
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