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US Patent: 661,696
Apparatus for Forming Irregular Spirals
Patentee: Henry F. Holtmann (exact or similar names) - Indianapolis, Marion County, IN USPTO Classifications: 142/10, 142/24, 144/138 Tool Categories: woodworking machines : wood lathes : pattern lathes Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 04, 1899 Granted: Nov. 13, 1900 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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