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US Patent: 427,887
Metallic collar Adjustable-thickness washer
Patentee: Alfred Muir (exact or similar names) - Manchester, England USPTO Classifications: 411/535 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: Herbert Rowland Abbey S. W. Gillett	Patent Dates: Applied: Apr. 02, 1890 Granted: May 13, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for William Muir & Co.

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