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US Patent: 727,580
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Patentee:
George W. Brackin (exact or similar names) - Philadelphia, PA

USPTO Classifications:
408/192

Tool Categories:
woodworking tools : hand drills : drill bits : countersinks

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Everett Andrews
Myron H. Allen
Patent Dates:
Applied: Jun. 14, 1902
Granted: May 12, 1903

Patent Pictures:
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