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US Patent: 297,975
Hydraulic jack
Patentee: Richard H. Dudgeon (exact or similar names) - New York, NY USPTO Classifications: 60/481 Tool Categories: material handling : jacks : hydraulic jacks Assignees: Richard Dudgeon - New York, NY Manufacturer: Richard Dudgeon - New York, NY Witnesses: J. E. Warner Willis McDonald	Patent Dates: Applied: May 10, 1883 Granted: May 06, 1884 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Richard Dudgeon

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