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US Patent: 6,668
Machinery for cutting screws in bedsteads
Patentees:
Henry J. Betjemann - Harrison, OH
Joseph Garside - Harrison, OH

USPTO Classifications:
408/68, 470/66, 92/103M

Tool Categories:
specialty machines
woodworking machines : specialty machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Thomas Hurst
D. L. Brown

Patent Dates:
Granted: Aug. 28, 1849

Patent Pictures:
USPTO pdf tiff
Google Patents
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