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US Patent: 680,730
Lifting-jack
Patentee: William H. Oliver (exact or similar names) - Chicago, IL USPTO Classifications: 254/95, 74/155 Tool Categories: material handling : jacks : vehicle jacks : automobile and truck jacks Assignees: None Manufacturer: U. S. Jack Co. - Chicago, IL Witnesses: F. A. Hopkins Edna B. Johnson	Patent Dates: Applied: Aug. 09, 1900 Granted: Aug. 20, 1901 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Wrench Wiki page on US Jack Co.

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