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US Patent: 18,588
Improved machine for turning spiral forms
Patentee: John C. Hintz (exact or similar names) - Cincinnati, OH USPTO Classifications: 142/26 Tool Categories: woodworking machines : specialty woodworking machines : rope and spiral cutting machines Assignees: None Manufacturer: Not known to have been produced Witnesses: George H. Knight James H. Gridley	Patent Dates: Granted: Nov. 10, 1857 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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