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US Patent: 1,107,611
Lever-socket for lifting-jacks
Patentee: Isaiah E. Hindman (exact or similar names) - Crafton, PA USPTO Classifications: 74/159 Tool Categories: trade specific : vehicle repairer : vehicle mechanic Assignees: Duff Mfg. Co. - Pittsburgh, PA Manufacturer: Duff Mfg. Co. - Pittsburgh, PA Witnesses: George B. Bleming R. A. Balderson	Patent Dates: Applied: Aug. 14, 1912 Granted: Aug. 18, 1914 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Duff Mfg. Co.

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