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US Patent: 1,955,183
Tool Balancing Means
Patentee: Ernest A. Hall (exact or similar names) - Toledo, Lucas County, OH USPTO Classifications: 42/148 Tool Categories: specialty tools : valve grinding tools trade specific : vehicle repairer : vehicle mechanic : valve and seat maintenance Assignees: Hall Manufacturing Co. - Toledo, Lucas County, OH Manufacturer: Hall Manufacturing Co. - Toledo, Lucas County, OH Witnesses: Unknown	Patent Dates: Applied: Dec. 15, 1933 Granted: Apr. 17, 1934 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Hall Manufacturing Co.

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