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US Patent: 414,687
Steam Stamping Press
Patentees: William H. Dopp, Executor, II (exact or similar names) - Buffalo, Erie County, NY Michael J. Stark, Executor (exact or similar names) - Buffalo, Erie County, NY Henry William Dopp, deceased (Estate of) (exact or similar names) - Buffalo, Erie County, NY USPTO Classifications: 72/438 Tool Categories: metalworking machines : forging machines : steam hammers Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 01, 1887 Granted: Nov. 12, 1889 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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