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US Patent: 1,696,477
Cylinder Hone
Patentees: Ernest A. Hall (exact or similar names) - Toledo, Lucas County, OH Gerald J. Lindroth (exact or similar names) - Toledo, Lucas County, OH USPTO Classifications: 451/473, 451/476 Tool Categories: metalworking tools : honing tools Assignees: Hall Manufacturing Co. - Toledo, Lucas County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 25, 1926 Granted: Dec. 25, 1928 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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