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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)
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Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for William Muir & Co.

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