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US Patent: 2,257,452
Metal Finishing
Patentees:
George W. Binns (exact or similar names) - Cincinnati, OH
Albert H. Dall (exact or similar names) - Cincinnati, OH

USPTO Classifications:
451/173, 451/901, 82/130, 82/142, 82/905

Tool Categories:
metalworking machines : grinding machines

Assignees:
Cincinnati Grinders, Inc. - Cincinnati, OH

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 10, 1939
Granted: Sep. 30, 1941

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Cincinnati Grinders, Inc.

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