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US Patent: 20,010
Bit holder
Patentee:
David H. Whittemore (exact or similar names) - Worcester, MA

USPTO Classifications:
279/77

Tool Categories:
woodworking tools : braces : brace chucks

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Henry Chapin
G. A. Williams
Patent Dates:
Granted: Apr. 20, 1858

Patent Pictures: [ 1 | 2 ]
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