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US Patent: 117,567
Improvement in boring-machines
Pump auger
Patentee:
William Penn Powers (exact or similar names) - North La Crosse, WI

USPTO Classifications:
408/67

Tool Categories:
metalworking machines : drilling and boring

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Henry E. Getts
John B. Richards

Patent Dates:
Granted: Aug. 01, 1871

Patent Pictures:
USPTO (New site tip)
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