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US Patent: 140,113
Mandrils for Holding Tapered Cast Rings
Patentee:
George E. Brettell (exact or similar names) - Rochester, Monroe County, NY

USPTO Classifications:
82/168

Tool Categories:
metalworking tools : mandrels and arbors

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Oct. 05, 1872
Granted: Jun. 24, 1873

Patent Pictures:
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