US Patent: 447,553 - Machine for Grinding Lathe Centers


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US Patent: 447,553

Machine for Grinding Lathe Centers

Patentee:

William Barker (exact or similar names) - Newport, Campbell County, KY

USPTO Classifications:

Tool Categories:

metalworking machines : grinders : lathe center grinders

metalworking machines : metal lathes : metal lathe accessories and attachments

Assignees:

None

Manufacturer:

William Barker & Co. - Cincinnati, OH

Witnesses:

Unknown

Patent Dates:
Applied:	Sep. 22, 1890
Granted:	Mar. 03, 1891

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for William Barker & Co.

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