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US Patent: 74,206
Improvement in Machine for Grinding the Rolls of Rolling Mills
Patentee: Henry Disston (exact or similar names) - Philadelphia, PA USPTO Classifications: 105/29.1, 451/425 Tool Categories: metalworking machines : grinding machines Assignees: None Manufacturer: Not known to have been produced Witnesses: John White W. J. R. Delany	Patent Dates: Granted: Feb. 11, 1868 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Russ Allen.
Description: Applied to the frame of a rolling mill and allows the roll to be ground or dressed without removing the rolls.

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