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US Patent: 156,226
Improvement in boring-machines
Patentee:
Harrison Kalbach - Robesonia Furnaces, PA

USPTO Classifications:
144/108

Tool Categories:
woodworking machines : wood drilling and boring : woodworking horizontal borers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Sep. 12, 1874
Granted: Oct. 27, 1874

Patent Pictures:
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