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US Patent: 1,987,837
Portable grinding machine
Patentee: Arthur William Mall (exact or similar names) - Chicago, IL USPTO Classifications: 105/162, 451/344, 451/347 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jun. 01, 1934 Granted: Jan. 15, 1935 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Mall Tool Co.

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