US Patent: 1,831,172 - Cylinder Hone


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US Patent: 1,831,172

Cylinder Hone

Patentee:

Ernest A. Hall (exact or similar names) - Toledo, Lucas County, OH

USPTO Classifications:

Tool Categories:

metalworking tools : honing tools

trade specific : vehicle repairer : vehicle mechanic : cylinder maintenance

Assignees:

None

Manufacturer:

Hall Manufacturing Co. - Toledo, OH

Witnesses:

Unknown

Patent Dates:
Applied:	Dec. 10, 1928
Granted:	Nov. 10, 1931

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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