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US Patent: 298,777
Vise
Patentee:
Calvin Riggs (exact or similar names) - Worcester, MA

USPTO Classifications:
269/222, 269/246, 269/285

Tool Categories:
work holding : vises : bench vises

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
E. H. Hill
Henry Eveleth Hill
Patent Dates:
Applied: Jul. 12, 1883
Granted: May 20, 1884

Patent Pictures:
Fig. 1 & 2
USPTO (New site tip)
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