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US Patent: 6,843X
Grist mill Combined grist and saw mill
Patentee: Noah Porter (exact or similar names) - Boston, MA USPTO Classifications: Tool Categories: trade specific : miller woodworking machines : sawmills Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Granted: Nov. 17, 1831 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Grist mill
Description: Most of the patents prior to 1836 were lost in the December 1836 fire. Only about 2000 of the almost 10000 documents were recovered. Little is known about this patent. Only the patent drawing is available.

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