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US Patent: RE5,721
Improvement in machines for cutting irregular forms
Patentee: Jonathan P. Grosvenor (exact or similar names) - Lowell, MA USPTO Classifications: 144/153, 144/231 Tool Categories: woodworking machines : wood lathes Assignees: None Manufacturer: Jonathan P. Grosvenor - Lowell, MA Witnesses: James S. Grinnell Charles Rogers	Patent Dates: Applied: Dec. 16, 1872 Granted: Jan. 06, 1874 Reissue Information: Reissue of 20,345 (May 25, 1858) Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for J. P. Grosvenor.
Description: Extended 7 years.

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