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US Patent: 132,400
Improvement in Work Holders for Lathes
Patentee:
William P. Hopkins - Lawrence, MA

USPTO Classifications:
82/162

Tool Categories:
metalworking machines : metal lathes : lathe tool holders

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
William W. Colby
Albert H. Stearns

Patent Dates:
Granted: Oct. 22, 1872

Patent Pictures:
USPTO pdf tiff
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