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US Patent: 9,805
Expanding Mandrel
Expanding Mandrel for Turning Machinery
Patentee:
Walter Sherrod (exact or similar names) - Providence, Providence County, RI

USPTO Classifications:
403/371, 82/169

Tool Categories:
metalworking tools : mandrels and arbors

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Jun. 21, 1853

Patent Pictures:
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