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US Patent: 1,906,263
Valve Seat Grinder
Patentee:
Ernest A. Hall (exact or similar names) - Toledo, Lucas County, OH

USPTO Classifications:
24/43, 24/489

Tool Categories:
specialty tools : valve reseating 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: Feb. 25, 1932
Granted: May 02, 1933

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

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