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US Patent: 4,369,606
Abrasive head
Patentee: Ralph E. Reiman (exact or similar names) - Indianapolis, IN USPTO Classifications: 15/183, 451/467, 451/469, 451/493 Tool Categories: Assignees: Grinding & Polishing Machinery Co. - Indianapolis, IN Manufacturer: Grinding & Polishing Machinery Co. - Indianapolis, IN Witnesses: Unknown	Patent Dates: Applied: Sep. 11, 1980 Granted: Jan. 25, 1983 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Grinding & Polishing Machinery Co.
Description: Improvements to patent 2,430,099 to better secure the brush holders. That older patent was assigned to Vonnegut Moulder Corp.

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