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US Patent: 2,830,411
Reciprocating sanding machine
Patentee: Eric Hartmann (exact or similar names) - Syracuse, NY USPTO Classifications: 451/356 Tool Categories: handheld power tools : handheld power sanders woodworking machines : sanding machines : handheld power sanders Assignees: Porter-Cable Machine Co. - Syracuse, NY Manufacturer: Porter-Cable Machine Co. - Syracuse, NY Witnesses: Unknown	Patent Dates: Applied: Feb. 20, 1956 Granted: Apr. 15, 1958 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Porter-Cable Machine Co.
Description: Inventor Hartmann was deceased at time the patent was granted.

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