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US Patent: 162,505
Improvement in machines for rounding the corners of slate-frames
Patentee: Abraham Stroh (exact or similar names) - Mauch Chunk, PA USPTO Classifications: 144/145.1, 144/253.1 Tool Categories: woodworking machines : specialty woodworking machines Assignees: None Manufacturer: Not known to have been produced Witnesses: William Butler William G. Freyman	Patent Dates: Applied: Mar. 18, 1875 Granted: Apr. 27, 1875 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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