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US Patent: 939,879
Wrench
Patentee:
Lawson G. Van Ormer (exact or similar names) - Trafford, PA

USPTO Classifications:
81/138

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

Assignees:
None

Manufacturer:
Van Ormer Wrench Mfg. Co. - Pitcairn, PA

Witnesses:
Samuel Payne
K. H. Butler
A. J. Trigg
Max H. Sholovitz

Patent Dates:
Applied: Jan. 28, 1909
Granted: Nov. 09, 1909

Patent Pictures:
L. G. Van Ormer patent Nov. 9, 1909 with photo of example courtesy Martin J. Donnelly mjdtools.com
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Description:
Quick-adjust nut wrench with a lever-actuated pawl in the movable jaw that engages rack teeth cut in the main shank.

In 1911, the company was anticipating a new plant at Trafford City, PA.

Corresponding Canadian patent CA-129,297 was granted Nov. 15, 1910.

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