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US Patent: 2,318,854
Portable Valve Seat Grinding Means
Patentee:
Ernest A. Hall (exact or similar names) - Toledo, Lucas County, OH

USPTO Classifications:
451/431

Tool Categories:
specialty tools : valve grinding tools
specialty machines : valve reseating machines
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: Nov. 10, 1941
Granted: May 11, 1943

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Hall Manufacturing Co.

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