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US Patent: 381,213
Wrench
Patentee:
James H. Christie - Brooklyn, NY

USPTO Classifications:
81/3.43, 81/64

Tool Categories:
wrenches : jar wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. W. Benjamin
James M. Fully
Jacob Christie
Wm. H. Brightson

Patent Dates:
Applied: Jun. 07, 1887
Granted: Apr. 17, 1888

Patent Pictures:
James H. Christie patent April 17, 1888
USPTO pdf tiff
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Description:
Jar wrench. The features are the wire loop, cushioned fulcrum block, and notches on the handle for adjusting the working size of the loop.

The specifications note and disclaim features in patent nos. 152,940, 178,655, 192,760, and 218,835.

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