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US Patent: 647,525
Trip Hammer
Patentee: Christian Rothenberger (exact or similar names) - Tripp, Hutchinson County, SD USPTO Classifications: 72/433 Tool Categories: metalworking machines : forging machines : trip and helve hammers Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 30, 1898 Granted: Apr. 17, 1900 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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