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US Patent: 4,428,158
Method and apparatus for grinding irregular surfaces
Patentee:
James J. Fatula, Sr. (exact or similar names) - Ellwood City, PA

USPTO Classifications:
409/125, 409/180, 409/202, 451/123, 451/127, 451/439

Tool Categories:
metalworking machines : grinders

Assignees:
Ryman Engineering Co. - Ellwood City, PA

Manufacturer:
Ryman Engineering Co. - Ellwood City, PA

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 24, 1981
Granted: Jan. 31, 1984

Patent Pictures:
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Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Ryman Engineeering Co.

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