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US Patent: 431,606
Drilling-machine
Patentees:
George W. Midgley (exact or similar names) - Rockford, IL
Howard E. Harbaugh (exact or similar names) - Rockford, IL

USPTO Classifications:
408/99

Tool Categories:
metalworking machines : drilling and boring : drill presses
woodworking machines : wood drilling and boring : drill presses

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
L. L. Morrison
E. F. Dowling

Patent Dates:
Applied: Apr. 18, 1890
Granted: Jul. 08, 1890

Patent Pictures:
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