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US Patent: 83,045
Improvement in Vises
Patentee:
John C Crumpton (exact or similar names) - Philadelphia, PA

USPTO Classifications:
269/244, 269/285

Tool Categories:
work holding : vises : bench vises

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Frank Blockley
Alex. F Roberts
Patent Dates:
Granted: Oct. 13, 1868

Patent Pictures:
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