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US Patent: 3,181,283
Means for cutting chip breaker grooves
Patentee: Philip B. Tuttle (exact or similar names) - Kalamazoo, MI USPTO Classifications: 451/213, 451/273, 451/367, 451/377 Tool Categories: Assignees: Hammond Machinery Builders, Inc. - Kalamazoo, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Granted: May 04, 1965 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Hammond Machine Co.

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