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US Patent: 2,869,409
Slidable Jaw Wrench with Worm Latching Means
Patentees:
John E. Swanstrom (exact or similar names) - Duluth, MN
Wade Hampton Connell (exact or similar names) - Duluth, MN
Joseph Fenimore Cooper (exact or similar names) - Duluth, MN
Swan Elmer Swanson (exact or similar names) - Duluth, MN

USPTO Classifications:
81/165

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

Assignees:
Diamond Calk Horseshoe Co. - Duluth, MN

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Apr. 22, 1957
Granted: Jan. 20, 1959

Patent Pictures:
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Description:
Williamson, Schroeder, Adams & Meyers - patent attorneys

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