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US Patent: 561,862
Can Opener
Patentee:
Frank W. Brown - Randolph, NY

USPTO Classifications:
30/1.5, 30/435, 81/3.44, 81/3.56, 81/407

Tool Categories:
wrenches : jar wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
F. L. Ourand
Sarah A. Fisher
Ebenezer Fisher

Patent Dates:
Applied: Feb. 26, 1896
Granted: Jun. 09, 1896

Patent Pictures:
Frank W. Brown patent June 9, 1896
USPTO pdf tiff
Google Patents
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Description:
It appears to be a jar wrench; the specifications indicate the teeth are sharp similar to saw teeth. Thus the tool could cut through sheet metal cans, or by wedging between a jar lid and shoulder, break a resilient seal and lift the lid.

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