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US Patent: 162,417
Improvement in devices for shaping piano-keys
Patentee: Milon Pratt (exact or similar names) - Deep River, CT USPTO Classifications: 144/124, 144/278.1 Tool Categories: woodworking machines : cutter head machines : wood shapers trade specific : music instrument maker Assignees: Pratt, Read & Co. - Deep River, CT Manufacturer: Not known to have been produced Witnesses: S. M. Shipman Felix A. Denison	Patent Dates: Applied: Mar. 09, 1875 Granted: Apr. 20, 1875 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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