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US Patent: 2,281,420
Built Up Abrasive
Patentee:
Joseph C. Drader (exact or similar names) - Detroit, Wayne County, MI

USPTO Classifications:
451/540

Tool Categories:
metalworking machines : gear cutting tools

Assignees:
Michigan Tool Co. - Detroit, Wayne County, MI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 15, 1936
Granted: Apr. 28, 1942

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

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