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US Patent: 119,838
Improvement in Pipe Wrenches
Improvements in Pipe Tongs or Wrench
Patentees:
David Frank - Allentown, PA
Theophilus Snyder - Allentown, PA

USPTO Classifications:
81/342, 81/386, 81/422

Tool Categories:
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Henry N. Miller
C. L. Evirt
Edwin W. Fried
Henry T. Kleckner

Patent Dates:
Applied: Aug. 05, 1871
Granted: Oct. 10, 1871

Patent Pictures:
David Frank and Theophilus Snyder patent Oct. 10, 1871
USPTO pdf tiff
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Description:
The combination of graduated hook sizes on the spring-loaded rotating head and on the main bar enable to tool to grasp a wide range of pipe sizes.

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