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US Patent: 2,145,980
Sandpaper drum
Patentees:
Harry O. Schmidt (exact or similar names) - Pueblo, CO
Oscar E. Hadwiger (exact or similar names) - Pueblo, CO

USPTO Classifications:
451/497, 451/521

Tool Categories:
woodworking machines : sanding machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Mar. 04, 1938
Granted: Feb. 07, 1939

Patent Pictures:
USPTO (New site tip)
Google Patents
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