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US Patent: 9,805
Expanding Mandrel
Expanding Mandrel for Turning Machinery
Patentee:
Walter Sherrod - Providence, RI

USPTO Classifications:
403/371, 82/169

Tool Categories:
metalworking machines : metal lathes : metal lathe accessories

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Jun. 21, 1853

Patent Pictures:
USPTO pdf tiff
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