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US Patent: 3,448,023
Belt type electro-chemical (or electrolytic) grinding machine
Patentee: Ramsay M. Bell - Kalamazoo, MI USPTO Classifications: 204/209, 204/217, 204/224M, 204/238, 451/449, 451/450, 451/488 Tool Categories: Assignees: Hammond Machinery Builders, Inc. - Kalamazoo, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Granted: Jun. 03, 1969 Patent Pictures: USPTO Images Google Patents Report data errors or omissions "Vintage Machinery" entry for Hammond Machine Co.

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