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US Patent: 17,230
Improvement in the buckets of automatic grain-weighing machines
Patentee:
Rufus Porter (exact or similar names) - Washington, DC

USPTO Classifications:
177/19, 235/120

Tool Categories:
agricultural : grain scales

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Paul Stevens
William H. Fanning
Patent Dates:
Granted: May 05, 1857

Reissue Information:
Reissued as RE516 (Dec. 22, 1857)

Patent Pictures:
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