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US Patent: 46,747
Centering Chuck
Patentee:
Thomas H. Worrall - Manchester, Hillsborough County, NH

USPTO Classifications:
279/64

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Mar. 07, 1865

Patent Pictures:
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