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US Patent: 2,515,431
Detachable Hammer Tip
Patentee: Carl A. Ulfves (exact or similar names) - Auburn, Worcester County, MA USPTO Classifications: 81/19, 81/25 Tool Categories: metalworking tools : hammers : ball pein hammers Assignees: Stevens Walden Inc. - Worcester, Worcester County, MA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 12, 1947 Granted: Jul. 18, 1950 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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