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US Patent: 93,824
Pipe Drill
Improved Compound Tool for Water and Gas Pipes
Patentee:
William Humphreys (exact or similar names) - Waterford, Saratoga County, NY

USPTO Classifications:
408/219, 408/224

Tool Categories:
specialty tools : pipe reamers
metalworking tools : taps and dies
metalworking machines : drilling and boring : drill bits

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Aug. 17, 1869

Patent Pictures:
USPTO (New site tip)
Google Patents
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