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US Patent: 1,274,502
Machine for Flutiing Twist Drill Blanks
Patentee:
Oramel S. Bickford - Greenfield, MA

USPTO Classifications:
409/68, 409/70, 451/220

Tool Categories:
tool making : making drills and augers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Mar. 12, 1917
Granted: Aug. 06, 1918

Patent Pictures:
USPTO pdf tiff
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Description:
Harry W. Bowen - patent attorney

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