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US Patent: 2,010,759
Pilot Stem
Patentee:
Ernest A. Hall (exact or similar names) - Toledo, Lucas County, OH

USPTO Classifications:
254/42

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: Jul. 14, 1932
Granted: Aug. 06, 1935

Patent Pictures:
USPTO (New site tip)
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Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Hall Manufacturing Co.

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