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US Patent: 471,380
Grinding Attachment
Patentee:
Peter Forg (exact or similar names) - Somerville, Middlesex County, MA

USPTO Classifications:
451/150, 451/451

Tool Categories:
metalworking machines : grinders : grinding attachments
metalworking machines : metal shapers : metal shaper accessories

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jun. 29, 1891
Granted: Mar. 22, 1892

Patent Pictures:
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