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US Patent: 88,885
Screw Forming Machine
Patentee:
John L. Mason (exact or similar names) - New York, NY

USPTO Classifications:
72/85

Tool Categories:
metalworking machines : metal swaging machines
metalworking machines : metal threading machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Apr. 13, 1869

Patent Pictures:
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