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US Patent: 492,401
Wrench
Patentee:
William H. Kaltenbeck (exact or similar names) - Middlesborough, KY

USPTO Classifications:
81/160, 81/177.1

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
F. McArdle
C. Sedgwick
T. H. Curd
Wm. Moses
Patent Dates:
Applied: Jun. 10, 1892
Granted: Feb. 28, 1893

Patent Pictures:
William H. Kaltenbeck patent February 28, 1893
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Description:
A quick-adjust mechanism where a collar with an eliptical shaped interior acts as clamping device for the movable jaw.

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