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US Patent: 8,620
Attaching Cutters for Cutting Screws on Rails of Bedsteads
Wooden Thread Cutting Machine
Patentee:
Jacob Zimmer (exact or similar names) - Tiffin, OH

USPTO Classifications:
408/1R, 408/215

Tool Categories:
woodworking machines : wood drilling and boring : woodworking horizontal borers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Charles Ceonise
James P. Pollars
Patent Dates:
Granted: Dec. 23, 1851

Patent Pictures:
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