US Patent: 976,131 - Chain Breast Ratchet Drill


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US Patent: 976,131

Chain Breast Ratchet Drill

Patentee:

Stephen McClellan (exact or similar names) - Brooklyn, NY

USPTO Classifications:

408/92, 74/417

Tool Categories:

woodworking tools : hand drills : drill accessories

woodworking tools : hand drills : breast drills

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

R. P. Duffie

Ruth M. Duffie

Patent Dates:
Applied:	Dec. 24, 1908
Granted:	Nov. 15, 1910

Patent Pictures:

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Description:

McClellan references his earlier patents: 661,416and 714939. This is a refinement that he claims that can be made 1/3 cheaper as well as the capability to drill into corners.