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US Patent: 971,753
Commutator Truing Machine
Patentee:
Osman E. Hunt (exact or similar names) - Eagle Grove, Wright County, IA

USPTO Classifications:
29/27B, 451/418, 82/128

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Feb. 01, 1910
Granted: Oct. 04, 1910

Patent Pictures:
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