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US Patent: 330,643
Tail-screw for carpenters' benches
Patentee:
Conrad Ungermann (exact or similar names) - Dayton, OH

USPTO Classifications:
144/307

Tool Categories:
work holding : vises : vise mechanisms

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. A. Waltmire
B. Pickering
Patent Dates:
Applied: Aug. 15, 1885
Granted: Nov. 17, 1885

Patent Pictures:
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