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US Patent: 693,353
Can Holder
Patentee:
James B. Erwin - Milwaukee, WI

USPTO Classifications:
81/3.43, 81/64

Tool Categories:
wrenches : jar wrenches

Assignees:
None

Manufacturer:
Unknown

Witnesses:
F. A. Otto
Clara L. Roesch

Patent Dates:
Applied: Apr. 08, 1901
Granted: Feb. 11, 1902

Patent Pictures:
James B. Erwin Pat. Feb. 11, 1902
USPTO pdf tiff
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Description:
The tool has a flat spring steel band with notches that match gripping lugs on the jaws of the handles.

This patent along with Alfred Roesch's Oct. 27, 1903 patent (no. 742,238) are cited on a tool variously described as a jar wrench or oil filter wrench (see 2nd image in 742,238 for photo of example).

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