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US Patent: 243,806
Drill-chuck
Patentee:
Dwight Slate - Hartford, CT

USPTO Classifications:
279/43.3

Tool Categories:
woodworking tools : hand drills : drill chucks

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Theodore G. Ellis
Charles L. Burdett

Patent Dates:
Applied: Apr. 22, 1881
Granted: Jul. 05, 1881

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Dwight Slate Machine Co.

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