US Patent: X2,064 - Boring guns and pistols with twisted screw auger


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US Patent: 2,064X

Boring guns and pistols with twisted screw auger

Patentee:

Daniel Pettibone (exact or similar names) - Philadelphia, PA

USPTO Classifications:

74/840

Tool Categories:

metalworking machines : drilling and boring

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Granted:	Feb. 12, 1814

Patent Pictures:

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Description:

The patent drawing was restored after the fire; a copy of the specification surfaced much more recently and a scan is now available from the USPTO website.