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US Patent: 1,938,757
Grinding Machine
Patentees:
Sol Einstein (exact or similar names) - Cincinnati, OH
Frederick S. Haas (exact or similar names) - Cincinnati, OH

USPTO Classifications:
409/900.2, 451/140, 451/242

Tool Categories:
metalworking machines : grinding machines

Assignees:
Cincinnati Grinders, Inc. - Cincinnati, OH

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Sep. 22, 1930
Granted: Dec. 12, 1933

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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