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US Patent: 21,567
Machine for Cutting Metal Bars
Patentee:
Daniel R. Knowles (exact or similar names) - Center Groton, New Haven County, CT

USPTO Classifications:
409/327

Tool Categories:
metalworking machines : metal shearing machines

Assignees:
None

Manufacturer:
Cresson & Hubbard - Philadelphia, PA

Witnesses:
Hiram Willey
John Fitch
Patent Dates:
Granted: Sep. 21, 1858

Patent Pictures: [ 1 | 2 ]
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"Vintage Machinery" entry for Cresson & Smith

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