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US Patent: 1,422,201
Cotter Pin Puller
Patentee:
Marion H. Harter - Minneapolis, MN

USPTO Classifications:
29/248

Tool Categories:
pliers

Assignees:
None

Manufacturer:
Katy Tool Co. - Minneapolis, MN
Ramsey Accessories Mfg. Co. - St. Louis, MO
ZIM Mfg. Co. - Chicago, IL

Witnesses:
none listed

Patent Dates:
Applied: Dec. 06, 1920
Granted: Jul. 11, 1922

Patent Pictures: [ 1 | 2 | 3 | 4 ]
Marion H. Harter patent July 11, 1922
USPTO pdf tiff
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Description:
Specialty pliers type tool with a long flat right-angle extension on one jaw and a thin tapered hook point on the other jaw. The drawing shows how the tool works to remove cotter pins.

Initial production marked KATY KOTTER PULLER / MINNEAPOLIS, MINN -- production shifted to St. Louis and those are marked RAMCO COTTER PLIERS. The same design appears as ZIM MFG. Co. PAT JULY 11 1925 cotter puller pliers.

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