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US Patent: 151,446
Improvement in cutter-heads
Patentee: William T. Smith (exact or similar names) - Baltimore, MD USPTO Classifications: 144/225 Tool Categories: woodworking machines : machine and tool cutters : cutterheads trade specific : music instrument maker Assignees: William Knabe & Co. - Baltimore, MD Manufacturer: Not known to have been produced Witnesses: H. J. Schaefer Otto Benner	Patent Dates: Applied: Mar. 16, 1874 Granted: May 26, 1874 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin
Description: William Knabe & Co. was a piano manufacturer.

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