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US Patent: 381,857
Drill Chuck
Patentee:
James N. Skinner - New Britain, Hartford County, CT

USPTO Classifications:
279/64

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

Assignees:
None

Manufacturer:
Skinner Chuck Co. - New Britain, Hartford County, CT

Witnesses:
Charles L. Burdett
George G. Haddow
H. R. Williams
A. B. Jenkins

Patent Dates:
Applied: Sep. 12, 1887
Granted: Apr. 24, 1888

Patent Pictures: [ 1 | 2 ]
USPTO pdf tiff
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"Vintage Machinery" entry for Skinner Chuck Co.

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