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US Patent: 3,816,998
Method of and apparatus for rapidly abrading metal workpieces
Patentees:
Donald C. Elm (exact or similar names) - St. Paul, MN
Howard W. Grivna (exact or similar names) - Minneapolis, MN

USPTO Classifications:
451/24, 451/307, 451/403, 451/59

Tool Categories:
metalworking machines : metal sanding machines

Assignees:
Timesavers, Inc. - Minneapolis, MN

Manufacturer:
Timesavers, Inc. - Minneapolis, MN

Witnesses:
Unknown

Patent Dates:
Applied: May 16, 1973
Granted: Jun. 18, 1974

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Timesavers, Inc.

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