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US Patent: 1,468,127
Ring Turning Device
Patentee:
William S. Peterson (exact or similar names) - Great Falls, Cascade County, MT

USPTO Classifications:
82/12882

Tool Categories:
specialty machines : commutator dressing machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 13, 1921
Granted: Sep. 18, 1923

Patent Pictures:
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