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US Patent: 108,840
Improvement in Vises
Patentee:
John E Sinclair (exact or similar names) - Worcester, MA

USPTO Classifications:
269/160, 269/192

Tool Categories:
work holding : vises : bench vises

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
D H Andrews
M P Higgins
Patent Dates:
Granted: Nov. 01, 1870

Patent Pictures:
Patent Fig. 1
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