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US Patent: 588,069
Wrench
Patentee:
Albert Katzki - Erie, PA

USPTO Classifications:
81/185.1, 81/99

Tool Categories:
wrenches : wrench adjustment types : self-adjust wrenches
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
Reed Manufacturing Co. - Erie, PA

Witnesses:
Johan Wolff
Emil Umrath
M. E. Fowler
S. N. Acker

Patent Dates:
Applied: Nov. 11, 1896
Granted: Aug. 10, 1897

Patent Pictures: [ 1 | 2 ]
Albert Katzki patent August 10, 1897
USPTO pdf tiff
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Description:
The major feature of this self-adjusting hook jaw pipe wrench is the compression spring surrounding a guide rod. This spring pushes the hook jaw closed.

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