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US Patent: 174,486
Improvement in Wrenches
Patentee:
Reuben Collingsworth (exact or similar names) - St. Louis, MO

USPTO Classifications:
81/124.2, 81/124.4, 81/125.1, 81/73

Tool Categories:
wrenches : axle nut wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John Corcoran
John F. Wielandy
Patent Dates:
Applied: Aug. 23, 1875
Granted: Mar. 07, 1876

Patent Pictures:
Reuben Collingsworth Pat. March 7, 1876
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Description:
The patent adds a "crank handle" with a wrench opening at the end to a traditional box and open end "carriage wrench."

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