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US Patent: 323,179
Drill Chuck
Patentee:
William Mason (exact or similar names) - New Haven, New Haven County, CT

USPTO Classifications:
279/61, 279/902

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:
Applied: Apr. 20, 1885
Granted: Jul. 28, 1885

Patent Pictures:
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