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US Patent: 421,517
Drilling Machine
Patentee:
Francis H. Richards (exact or similar names) - Hartford, CT

USPTO Classifications:
192/21, 408/133, 408/236, 408/47, 409/900.2, 74/665R, 74/841

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

Assignees:
Eckley R. Coxe - Drifton, PA

Manufacturer:
Not known to have been produced

Witnesses:
Henry L. Reckard
Lewis C. Heermann
W. M. Byorknau

Patent Dates:
Applied: Nov. 23, 1889
Granted: Feb. 18, 1890

Patent Pictures:
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