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US Patent: 6,387
Machinery for Cutting Screws on Rails for Bedsteads
Patentees: William F. Converse (exact or similar names) - Cincinnati, OH Jonathan Burdge (exact or similar names) - Cincinnati, OH USPTO Classifications: 122/44.1, 470/59 Tool Categories: woodworking machines : specialty woodworking machines : wood threading machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Henry Miner John P. Rose	Patent Dates: Granted: Apr. 24, 1849 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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