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US Patent: 150,524
Improvement in plow-beams
Patentee:
John C. Butterfield - Chicago, IL

USPTO Classifications:
172/754

Tool Categories:
agricultural machines : plows or ploughs

Assignees:
John C. Butterfield - Chicago, IL
Byron C. Bradley - Chicago, IL

Manufacturer:
Not known to have been produced

Witnesses:
G. L. Chapin
I. H. Elliott

Patent Dates:
Applied: Feb. 07, 1874
Granted: May 05, 1874

Patent Pictures:
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