US Patent: 13,388 - Improved Ratchet-Wrench


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US Patent: 13,388

Improved Ratchet-Wrench

Patentee:

Alden Graham (exact or similar names) - Roxbury, MA

USPTO Classifications:

81/111, 81/61, 81/77

Tool Categories:

wrenches : ratchet wrenches

wrenches : wrench components : wrench jaw components

Assignees:

None

Manufacturer:

Atwood & Co. - Boston, MA

Witnesses:

Elliot E. Kellogg

Wm. Gaston

Patent Dates:
Granted:	Aug. 07, 1855

Patent Pictures: [ 1 | 2 ]

Alden Graham patent Aug. 7, 1855

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Description:

The improvement is the arrangement of adjustable jaws on a ratcheting wrench face. Known examples are unmarked. Manufacturer info. taken from "American Wrench Makers 1830-1930," by Kenneth Cope.