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US Patent: 1,971,790
Portable power tool
Patentee: Arthur W. Mall (exact or similar names) - Chicago, IL USPTO Classifications: 15/50.1, 279/99, 29/DIG.068, 29/DIG.088, 29/DIG.09, 451/354, 451/359, 451/450 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Granted: Aug. 28, 1934 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Mall Tool Co.
Description: Of interest because the inventor was the founder of Mall Tool Co. The tool itself is for finishing concrete.

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