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US Patent: 2,205,501
Safety Wrench
Patentee:
Joseph Sunnen - Ladue Village, St. Louis Count, MO

USPTO Classifications:
81/124.6, 81/478

Tool Categories:
wrenches : torque wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 27, 1937
Granted: Jun. 25, 1940

Patent Pictures:
USPTO pdf tiff
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