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US Patent: 408,143
Ink-grinding slab
Patentee: William X. Stevens (exact or similar names) - Washington, DC USPTO Classifications: 241/101.2, 241/291 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: Edgar Speiden, Jr. William L. Speiden	Patent Dates: Applied: Feb. 01, 1889 Granted: Jul. 30, 1889 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for W. X. Stevens

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