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US Patent: 133,574
Machines for Cutting Screw Threads on Bolts and Nuts
Patentee:
George Emig (exact or similar names) - Cincinnati, Hamilton County, OH

USPTO Classifications:
408/173, 470/78

Tool Categories:
metalworking machines : metal threading machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Dec. 03, 1872

Patent Pictures:
USPTO (New site tip)
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