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US Patent: 89,097
Improvement in Augers
Patentee:
Calvin Wardwell - Painesville, OH

USPTO Classifications:
408/223, 408/224

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

Assignees:
Calving Wardwell - Painesville, OH
H. H. Coe - Painesville, OH

Manufacturer:
Not known to have been produced

Witnesses:
Samuel Moodey
Edwin Huntington

Patent Dates:
Granted: Apr. 20, 1869

Patent Pictures:
USPTO pdf tiff
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