US Patent: 770,480


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US Patent: 770,480

Auger
Auger-Bit

Patentee:

Gustav A. Stanger (exact or similar names) - East Brimfield, MA

USPTO Classifications:

408/210, 408/214

Tool Categories:

woodworking tools : hand drills : drill bits : auger bits

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

M. Elizabeth Cochran

Manley B. Townsend

Patent Dates:
Applied:	Jun. 13, 1903
Granted:	Sep. 20, 1904

Patent Pictures:

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Description:

The outer diameter of each coil is the same, but the outer face of each is canted about 12 degrees to facilitate the bit clearing itself while being withdrawn from the hole.