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US Patent: 1,448,053
Wrench
Patentee:
Curtis A. Calvin (exact or similar names) - St. Paul, Howard County, NE

USPTO Classifications:
81/177.85, 81/62

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jan. 25, 1922
Granted: Mar. 13, 1923

Patent Pictures:
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