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US Patent: 1,256,646
Grinding and Polishing Machine
Patentee:
Cornelius J. Barry (exact or similar names) - Chicago, IL

USPTO Classifications:
369/257, 369/71, 451/180

Tool Categories:
specialty machines : polishing and buffing machinery

Assignees:
Cornelius J. Barry - Chicago, IL
Frederick J. Setchell - Chicago, IL

Manufacturer:
Not known to have been produced

Witnesses:
Charles W. Hills, Jr.
Earl M. Hardine
J. W. Angell

Patent Dates:
Applied: Apr. 18, 1917
Granted: Feb. 19, 1918

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
Description:
Charles W. Hills - patent attorney

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