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US Patent: 392,960
Boring-machine
Patentee:
Harlin Longwell (exact or similar names) - Elkland, PA

USPTO Classifications:
144/92, 74/841

Tool Categories:
metalworking machines : drilling and boring

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
L. K. Parkhurst
R. K. Skinner
Patent Dates:
Applied: Dec. 22, 1887
Granted: Nov. 13, 1888

Patent Pictures:
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