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US Patent: 410,311
Expansion Drill
Patentee:
Matthew T. Chapman (exact or similar names) - Aurora, Kane County, IL

USPTO Classifications:
175/286, 175/421

Tool Categories:
specialty machines : well drilling machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jul. 11, 1887
Granted: Sep. 03, 1889

Patent Pictures:
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